Hearted Youtube comments on Technology Connections (@TechnologyConnections) channel.

  1. You DO realize that with proper protection everywhere, my channel won't be able to operate, right?!
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  2. It's nice to see angry dishwasher man happy.
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  3. What I’m hearing is that the most expensive microwaves have a built-in Clapper.
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  4. cracks knuckles Chemistry expert and former detergent chemist here, chiming in. Modulo some small semantic differences, you're 100% spot on. Functionally, there is zero difference in the formulations. Every powder dish detergent on the market comprises the same functional components, though the exact chemicals selected may vary. It's always some combination of detergent, anti-deposition agent, water conditioners, strong base, oxidizers, enzymes, buffers, "processing aids", and what I call "foo foo juice" - colors and fragrances. The Purpose section is annoyingly vague so I'm going to break down each of the categories and give their examples. These aren't strict categories, in fact many of these chemicals perform double or even triple duty. Detergent/Surfactant - Allows water to bind grease molecules by virtue of having two halves, hydrophilic (water loving) and hydrophobic (water hating or grease-binding). These can be basic/anionic (negative charge): sodium lauryl sulfate (SLS); neutral: isotridecanol ethoxylated, PEG C10. Acidic/cationic (positive) are uncommon in dish detergents but you may see them in rinse aids. Bonus fact: rinse aids are typically mild acids ( pH about 3) which helps dissolve calcium deposits and soap scum. Because of this, they have to use neutral or cationic surfactants. Anti-deposition agent - Once you dissolve the grease, you don't want it to deposit back onto the dishes. Cascade calls this "boosts shine" but it's basically film prevention. The line between detergent and anti-deposition agent is blurry, and many chemicals can fulfill both roles. Acrylic copolymers are the best example here, but the PEGs (polyethylene glycol) also help in this regard, as do any neutral detergents. They tend to be weak detergents on their own, but their big advantage is they don't create soap scum (calcium fatty acids, more on that later). Water conditioners and chelators - Hard water means calcium, iron, and other large positive ions in solution. Calcium reacts with anionic surfactants (aka soaps) to form insoluble scum. This both reduces cleaning power and makes extra goop that needs to be cleaned! Water conditioners exchange sodium for calcium, binding it so it doesn't form scum. This category includes polycarboxylates, citric acid, sodium phosphate (discontinued), EDTA, and our friend sodium acrylate/maleic/carboxylate copolymers again (yes it doubles as both anti-deposition and water conditioner. Synergy!). Strong base - Anionic detergents work best at a high pH (alkaline/basic). Alkali also saponifies grease, giving it a hydrophilic group and turning it into soap! Lye (sodium hydroxide), bleach (sodium hypochlorite), sodium percarbonate aka sodium carbonate peroxide aka "OxyClean", sodium silicate, and sodium phosphate are all strong bases. See all that sodium? They also help condition water as well! Oxidizers - These react with staining molecules such as tomato sauce, berries, tea, and coffee, as well as natural polymers like proteins (cheese) to break them apart. Sodium hypochlorite and percarbonate are oxidisers. "Transition metal catalyst" has a similar role, except instead of being consumed, it facilitates the bleaching action. Enzymes - Starch and protein when heated and hydrated form a natural glue of sorts. Anyone dealing with stuck-on cheese or rice knows what I'm talking about. Enzymes are natural molecules that break these polymers down so they unstick from surfaces. Amylase specifically digests amylose (starch) and Subtilisin (protease) breaks down protein. Pro-tip: any time in biology you see whatever-ase, that breaks down _whatever_. Buffers - prevent the base from being too basic and etching glassware. I think this is what zinc carbonate is doing, but I'm not 100% sure. Processing Aid - Any time you see "processing aid" or "enables liquid processing" - that just means it's an inert bulk transport, because either the active ingredient is too viscous, or cakes easily, or whatever. Glycerin and Dipropylene glycol act as liquid solvents in those colorful liquid sections of the gel packs, since too much water would dissolve the pack. Sodium sulfate is just an inert powder.
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  5. Some clouds are worth yelling at 🗣☁
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  6. Alec really loves the "box that makes things hot/cold wet/dry" genre
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  7. We're so sorry everyone! 😭 We've ruined one of our favorite holiday traditions: watching Alec meticulously paint mini bulbs and become endlessly frustrated by the vape-shop inspired holiday madness! On a more personal note: I cannot thank you all enough for your incredible support. Only hours in, and the response has been nothing short of unbelievable. We are truly and forever grateful to each and every one of you. To all the nitpickers, those who provided feedback, shared pictures, and left comments—your input means the world to us. We couldn’t improve without your thoughtful suggestions, and we value each and every one of them. Cheers to the warmth and magic of Christmas!
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  8. Ohh jeez, THIS thing. Totally had one in our household and friend's households in the late 90s/early aughts 😄 It had the unintended side effect of putting increased emphasis on language, so my buddies and I constantly found ourselves more focused on deciphering what was actually being said anytime it muted. We learned all KINDS of colorful new language as a result that otherwise may have passed by without much thought. Thanks TV Guardian, you piece of ' crud. Wow.
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  9. One extra thing, the dedicated air fryers exhaust a lot of air while a convection oven recirculates the same air. This makes the air fryer dryer and crispier.
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  10. Brighter and goopier than I could have possibly imagined.
    10000
  11. I’m an automotive lighting, safety engineer, and just shared this with my team. Keep up the good work 😇
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  12. "So now its a permanent not magnet" Oh come on, you totally missed the opportunity to call it a Magnot
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  13. mmm, "Unknown Artist", allegedly best DJ in 2000s, everybody had one of his tracks somewhere
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  14. I bought a swamp cooler and it's awful. My swamp is still as hot and humid as ever.
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  15. I worked for 9 years back in the 1970's as a sound engineer in a film laboratory. I spent many hours recording optical sound tracks for 16mm film. As for the nice dark track on the prints; the film processor had a thickened developer that was applied to just the sound track area by a narrow wheel. This allowed the sound track area to retain the silver and make a nice dark track. The same was done for reversal films. It was important to have the track be as sharp as possible. While recording the sound negative, some of the light would scatter into the unexposed area. The same would happen when the negative was printed onto the final print. We would run exposure tests to get this effect to cancel and leave a nice sharp sound image on the print. If it was wrong, noise and intermodulation distortion would result. Another point you many notice is that the slits narrow down during the quiet parts. A DC bias was placed on the galvanometer to keep it as narrow as possible for quiet sections and then open up for the louder parts. This greatly reduced the film grain noise during projection. Great video as usual.
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  16. People forget that insulation works both ways, gets pretty crazy hot in Scotland these days but still cool at night so I open my windows at night and close them in the morning to hold onto the cool temperature during the day
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  17. >A computer cannot be held responsible! Companies: Yes! Isn't that great?
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  18. Optical amplifiers work on a very simple principal: they make the light louder.
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  19. A–A steamed hams reference?! At this time of year, At this time of day, In this part of YouTube, Localized entirely within the Technology Connections Freeze Dryer video?
    7500
  20. The length of sigh I released when you said "RG-bees knees..."
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  21. I remember when my teleprompter broke. I was speechless.
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  22. I’ve been pestering Alec to make a video about this for ages! So happy to see it!
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  23. I swear one of the best parts of growing up is being able to tear apart stuff without being yelled at
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  24. If it's not absolute zero there's some energy. Let's steal it!
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  25. If you've ever lived in a house that had awnings and then had them removed, you learn quickly why they were installed in the first place.
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  26. Truckers can see the reflectors just as well. They "fade" sooner though, but it's not an issue since they've served their purpose at that point. (Source - me: trucker for 6 years) Fun fact - a lot of road paint also has glass beads in it in order to create a reflective surface. (Source - me: road painter for...about a month) (edit... Oh... You covered that...I commented too soon. I should have known you'd cover that... Ok :)
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  27. That style of LCD display is known as a negative mode LCD.
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  28. People in my apartment complex always let the hallway doors slam shut and my dog barks every time. Just took a screwdriver down the hall and fixed this. Thank you!
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  29. Your channel is why I work in hvac now instead of being like homeless or dead or something. Thanks for that!
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  30. "I've always had a fascination for these" The entire basis of this channel and it's fantastic lol
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  31. I love how your videos range from "I'm really bothered by this very small design issue in this very specific product" to "Many people may die because engineers are lazy"
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  32. For my final in my high school speech class I demonstrated making pancakes right in the classroom. To do this I brought in a (rather modest) countertop griddle and, to reach the wall outlet... a flimsy brown extension cord. I didn't think twice about it. ...until partway through the demonstration-speech there was a flash of light as the cord literally melted away from the plug in the wall. We had to get a maintenance guy to come safely remove the now-bare-wire plug from the wall outlet. (He also brought a (better) extension cord, I finished my speech, and got a 99%. And the class got sample pancakes. :)
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  33. It's a shame this wasn't invented by Pioneer. They'd have figured out a way to make it play Laserdiscs, too. :)
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  34. YOU FOOL! That isn't a Cat5 cable, it is a Cat5E cable.
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  35. I used to be a "handwash only" guy, because I was ignorant of how the magic box in my kitchen worked - but your original video showed me the light. Now I throw everything in the dishwasher, buy the cheapest powder, and everything comes out perfect with only 10% of the effort. Unironically life changing advice here people.
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  36. Great video. Really pulled out all the stops for this one.
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  37. Brown? More like dark orange, amirite?
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  38. "The magic of buying…three of them" You've betrayed me
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  39. “Oldest not-book object I’ve held” Rocks: “Am I a joke to you?”
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  40. Otis elevators had touch sensitive call buttons that relied on capacitive coupling through humans to ground to trigger a neon filled tube that acted as sensor, latch, switch and indicator.. Way ahead of its time, and quite complex as a result.
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  41. As a father, I now wish I'd sent my daughters to piano lessons. Electronic pianos have headphones... violas and flutes do not.
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  42. "For this, we'll need a toaster." Alec you have a problem. Please admit it.
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  43. I'm impressed that Alec made it thru an entire video about a device with a refrigeration unit without once explaining what Latent Heat of Vaporization is.
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  44. I won't bore everyone with the saga, but trying to find an actual pro HVAC installer in a major market that understood this stuff and was willing to work with me took over a year and too much of my life energy.
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  45. "Level 1 is good enough for many people who need 40-50 miles a day, unless it's really cold where you are." Has been my unpopular opinion forever, and I'm so glad to see you address it so well.
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  46. If I am interpreting this correctly: Aesthetically, Tinted Incandescent Christmas lights feel like plucking the A string on a guitar. Monochromatic LED Christmas lights feel like playing an exactly 440Hz square wave out of a piezoelectric speaker.
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  47. that internet pun was so painful, it hertz
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  48. I love flicker flame lamps. But on 240V the resistors in the bases of ours dissipate a lot more power and get fried. I found that by adding a 100nF capacitor in series it reduces the base temperature while still giving good flicker. A generic eBay flicker lamp with shiny metal electrodes didn't last long.
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  49. 15:16 "It's not like awnings don't come with any drawbacks..." Indeed. Many awnings can be drawn back during the winter months to let more heat energy in, and let you enjoy the sight of a beautiful winter day.
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  50. I'm Chinese and I use wok for cooking an awful lot. The truth is for family use a regular induction cooktop coupled with a flat wok (yes these things exist) is quite enough. I've been using induction stoves for well over a decade now and I use it INSTEAD of a traditional gas stove whenever and wherever I can. It's efficient, it uses clean energy, it doesn't produce excessive heat, and most of all I don't have to worry about fire hazard or gas leakage. Also these things are incredibly cheap (at least in China). For a standalone cooktop it's usually no more than 50 US dollars (converted from Chinese Yuan). I currently work abroad and I took one with me, love it.
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  51. I am an engineer who was specializing in "novel" refrigeration machinery until I went to the dark side and became management. I also bought one of these machines from this company to play with and understand the process. The control board will happily spit out a pretty nice log file automatically if you plug in a flash drive to the USB port. I was able to understand what it was doing and its control points by using that log.
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  52. As someone with photosensitive epilepsy I can't tell you how much I appreciate the warnings, especially when there's a way for me to know when it's safe to look back, thank you.
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  53. “Latent Heat of Popcornization”
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  54. “Now you’re cooking with Gauss!”
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  55. I've been following this saga for however long you've been doing it (I have the same complaints). I'm so glad there's finally a solution hahaha.
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  56. "Through the magic of buying two of them…" Never change, Mr Brown Jacket Man
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  57. "when you compliment a midwesterner on a personal possession, it is customary for him to explain that he obtained the item at a substantial discount"
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  58. I love the ads "uses only as much energy as your coffee maker" meanwhile...your coffee maker uses 1500 watts. You just don't have it on all day.
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  59. It’s so weird seeing a subway in a basement hallway with carpeted walls😂
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  60. You were correct, mind blown on burning and dodging, after using Photoshop for 15+ years those little lollipop and closed hand icons finally make sense. I love learning about the analog origins of digital tools and terminology and having them suddenly gain a tangible meaning. A technology connection, if you will
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  61. I need weighted keys for the ergonomics. Semi-weighted keys hurt my fingers. Your body also develops muscle-memory that intuits a pitch-to-weight gradient connection.
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  62. As a commerical locksmith you would not BELIEVE how many calls I get that say "our door is slamming/our door is not latching" that require about 2 turns of a screwdriver to fix and cost the customer $300+. Everyone who owns, rents, or manages a commercial building should know how to adjust a door closer. Edit to add: another key reason to have a hydraulic or spring closer is that aluminum storefront doors are absolutely heavy enough to shatter the glass if for example thrown shut by a gust of wind or allowed to swing downhill in an unlevel doorframe. Even a minor slam, if it happens to that door dozens of times a day over the course of years, can also cause the early death of expensive locking hardware.
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  63. While I agree with everything you said there is something even more important especially in the USA. Insulation. Insulation earns back the investment easily (especially with the current rising prices) and will also reduce the need for heating meaning your heating pumps won't be on as often and that IF there is a failure your house will hold on to the heat inside of it.
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  64. Awwww, you didn't mention turn signals! The "click, clack" of turn signals used to be caused by the relay that controls the bulbs toggling on and off. Now cars use solid state relays, so the clicking sound is produced artificially by a speaker under the dash.
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  65. Giving people enthusiasm and knowledge is terrific, but giving people actionable info and a path forward that they can follow is outstanding and can change the world. 👍
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  66. See kids, this is why you should read your car’s owners manual
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  67. This series is much like the CED itself: in development way longer than intended, but, far too deep into production to bail on it now.
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  68. Ive been thinking about this a lot recently. There is definately a "pre algorithm" and "post algorithm" internet, and the newer users dont understand how it vastly differs. People used to control and find what they wanted to see, the communities they joined.. now they just have things presented to them.
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  69. Regarding the 'Magic Physics' for your ice buildup problem: The cold spot does not attract the Water/Ice, the gaseus water moves to every place with roughly the same chance, but the cold area is the place where the water looses it's energy and is significantly less likely to leave again, so it accumulates there.
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  70. As a locksmith I was going to chime in a bunch of times with stuff I thought you had missed but by the time I finished the video you had covered pretty much everything. Very thorough, well done.
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  71. Havent we been trough this? The spent single-use ones are not browner, they are oranger with just as little context.
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  72. Can’t say I expected you to make a video of this kind but I highly respect it. Having access to internet for over 2 decades and watching it transform before my eyes, I can say your points and concerns are very valid. The modern day average user’s psychological dependence on apps and algorithms is genuinely worrying. I find it quite unbelievable at times that we humans are pretty much devolving our abilities and desires to learn. Thank you for making this video.
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  73. (Walks up dragging a rocking chair) "Mind if I join you?"
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  74. It's interesting because I've used the "not interested" and "don't recommend channel" options to effectively filter out most of the brain breaking slop. It could be a lot better (let me control that data beyond just clearing it), but I would still put YT above some other socials for this reason and because it allows space for actually useful content.
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  75. "Now, you can choose to do this in a completely dark room: here's an approximation of what that would look like." Wow. That's some nice CGI; I would never have guessed that was an approximation, and not actually filmed in a completely dark room!
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  76. I feel like our culture can really underestimate the long term ROI of good infrastructure and planning. I really like your content because it constantly highlights the practical value and steps people can take to improve these investments on their personal level and higher levels of advocacy. Literacy is a great way to change things.
    1900
  77. Despite the total absurdity of the device, I have to take my hat off to the engineers assigned to build it and write that manual. They did (I think) the best possible job within the technical limitations, were aware of the many failings, and mentioned them in detail in the manual. You don’t always get to choose what you work on, but it’s always great to see a difficult and unrewarding job done well regardless.
    1900
  78. Watch out if you have bought one years ago: Tip-over sensors were not standard back when I bought mine, ~15 years ago. It does still have the overheating limit switch at least.
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  79. As an Asian I would like to add: 1) 5kW-6kW induction wok-compatible stoves are fairly common in East Asian countries at least for restaurant use. "Wok hei" is really not an issue at all with the power they offer. 2) For a typical stir-fry dish, a 20-minute default timer sounds quite plentiful, especially on a home cook scale.
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  80. We are all weird but that’s what makes life interesting.
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  81. Some men just want to watch the world learn.
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  82. One explanation for the deinterlacing hiccup is that the video captured is saved as 30fps but the source is 29.97fps, that would cause a hiccup every 8-16 minutes.
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  83. I like how you spent the entire video trying to convince us how bad the Numitron was, but only managed to make us fall in love with it
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  84. Legend has it that if you say "warm white LED" 3 times, a wild BigClive might appear.
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  85. I wonder if Cave Johnson secretly owned RCA.
    1600
  86. We have left the Toaster Era and are now entering the Air Conditioner Epoch.
    1600
  87. One of my favourite things about heat pumps: My parents regularly used the old cliche line of parents telling their kids to close the doors / windows, "we aren't air conditioning outside". And now they aircondition the outside for half the year.
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  88. I've been watching your content for years now, and quite frankly, yours is one of the best channels on YouTube. Your videos are always so well put-together and researched, with sky high production values. Here, have a contribution from viewers like me.
    1500
  89. Hot brown Hot brown Hot brown Hot brown Hot brown Hot brown Hot brown Hot brown
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  90. My Uncle, Bernard Kopelman, invented the Magicube. He was the head of research at Sylvania Lighting. I remember him explaining how it worked back around 1970 when I was a teenager. He was a material scientist and before working at Sylvania he was involved in the Manhattan Project developing materials for nuclear reactors. Sylvania (GTE) rewarded him for his work on the Magicube by making him the Vice President of their materials division. He regretted the promotion the rest of his career since he was an inventor at heart and did not enjoy being a manager. My uncle got me a summer job at the Sylvania factory in 1976 when they were developing a machine to make a million electronic flash tubes.
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  91. Only 1 minute in, but commenting in advance to say, “hello, from Twitter.”
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  92. Oh yeah, I've been looking forward to this one! ☺️👍
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  93. Dude! your production value on this is amazing! that editing on the B&W TV was just 😙👌
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  94. "I'm not one to toot my own horn" says a guy with a seven and a half minute video consisting of himself tooting several of his own horns :)
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  95. 17:15 This device is much more tolerant to lightning, too. Important when it's setting atop a tall, grounded metal spike.
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  96. Next: "I messed up. You're using too much developer"
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  97. This LD series has been the best explanation I've seen of the format's successes and shortcomings. Excellent work!
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  98. Here’s your friendly German with two mildly interesting things about that Adonal bottle. First, most of the label is translated, except for the large “Schärfesteigernder Filmentwickler”, which simply means “sharpness-increasing film developer”. In case you were wondering. Second, at the top the English translation says “Produced according to the latest Rodinal formula”, while the German version below it says “Nach der zuletzt bekannten Rodinal Rezeptur hergestellt”, which more literally translates to “Produced according to the last known[!] Rodinal formulation”. I’m sure there’s a fascinating story behind this. Oh, and in case you’re really interested in Rodinal now, check out the German Wikipedia’s article about it, it’s way more detailed than the English one (yet). But in German, of course. Sorry.
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  99. I enjoyed hearing your thoughts.
    1200
  100. "Discerning what isn't a clap" is the most top tier B-roll I've ever seen.
    1200
  101. Displays like this predated microprocessors by several years - they were typically driven by discrete logic or even mechanical switches. By the time microprocessors were a significant thing, LED displays were available.
    1200
  102. Regarding Thorium mantles, another safety aspect is the dust generated when old mantles are removed from the lamp, you don't wanna be inhaling that stuff!
    1200
  103. I have a cheap dishwasher. The kind with only one sprayer. I was going to replace it because it never gets anything clean. Well, followed your instructions and now I use half the soap AND get clean dishes. Running the hot water first was a game changer. So, I figured I owed you $10. Thanks for helping me keep a perfectly fine dishwasher out of the landfill.
    1200
  104. I gotta say I really appreciate the disclaimer of you being an influencer at the beginning. Not because I was going to buy a freeze dryer, but because its super nice to see someone with an audience recognize and respect the responsibility of having a trusted voice. Thank you for being awesome!
    1100
  105. Such an excellent explanation. My version of this trip was barely more than an experience vlog
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  106. Once again, glad to help. Just so everyone knows why I own one... It's because of the 8 hours of record time. It's usually married to a very cheap non-hifi VHS deck and it breathed new purpose into said machine and that's about it.
    1100
  107. Okay, you actaully made me look at my Dishwashers Owner's manual. This is a BOSCH and I am located in Germany, for reference. The dishwasher does not have a pre-wash compartment. In the instructions it says (roughly translated) "Attention: due to the different activation time of detergent tablets you might have inferior cleaning power with short-running programs. We recommend powder detergent". Furthermore: "If you use powder detergent, we recommend pouring in a little extra directly into the tub for intensive cleaning, in addition to the detergent dispenser".
    1100
  108. You put so much effort into those sources, damn. I'm convinced SD cards aren't discs now.
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  109. Doesn't like toast — now owns THREE toasters. That's dedication.
    1100
  110. "Magnetic tape will never be economically viable!" Proceeds to dump funding into firing lasers at holograms
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  111. "I'm a midwesterner, I'm no stranger to principled suffering" is an amazing line :D
    1100
  112. Wow, I made those laser printer images ages ago when I was learning Inkscape. It's nice to see them used ten or so years later!
    1000
  113. I am so thrilled to learn about something that I have literally wondered about since I bought my first Jeep CJ... probably even longer in the past, if I could remember far enough back. :-D (also the note about right-hand drive and headlight patterns was fascinating!)
    1000
  114. As a person who worked in a G.E. Lamp Plant for over 20 years making the actual bulbs for the FlashCube, SuperCube, HiPower, MagiCube, & FlipFlash (names such as GE, Osram, Wootan, & several store brands); your assessment of the parts (glass bulb, glass beads, zirconium/magnesium foil, tungsten filament, oxygen, primer, etc...) were spot-on. The most dangerous part of the process was the use of the primer for MagiCube, which the post was dipped into. (A safer & different primer was used to dip the tungsten filament & electrical posts for the other flash bulbs. That primer wasn't as pressure sensitive.) The cup that held the primer was changed every 3-4 hours. As long as the primer wasn't dried out on the inside of the dip cup; which happens as the level in the cup drops, it was safe. BUT dried primer was extremely volatile & accidents have happened. As a side note... back in the heyday of chemical flash; our plant was just one of several that ran over 100 machines; each machine producing 2000-2500 bulbs/hour, 24 hours a day, 6+ days a week, for about 20 years. THAT'S A LOT OF BULBS!!
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  115. "Now, I'm about to be rather unkind to this piece of alleged technology," he said after basically calling it a piece of shit
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  116. Wow! I didn't know much of this history and I was one of the last engineers to leave the project. Myself and Tom Sasena designed the equipment that put digital information in the vertical interval and as needed filled the video portion with data. It was to be used for educational and gaming applications. Dungeons and Dragons was one of our customers. After spending another year at RCA New Products Division in Lancaster, PA where we were going to build a PC with a 2 chip set display processor designed at the Princeton Labs, I decided they weren't serious and went to Bell & Howell Columbia Paramount where I designed video tape loading systems.
    1000
  117. No channel manages to make me watch, rapt, such long videos about such useless things
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  118. I still like my big 85w CFL's for video lights. Very minimal flicker for high speed video recording. There are better LED's out there, but it's not cheap to get an equivalent setup that runs without flicker on wall power.
    1000
  119. Unless there are more plugs per outlet, I don’t think having more outlet locations will reduce how often people use power strips. Even the simplest TV or computer setup needs more than just two outlets, and if the choice is between running an extension to the next outlet another 6ft away or to put a strip on the closest one, you still run into the gauging issue either way.
    1000
  120. I appreciate how you talked about the environmental risks of this project and how you planned to mitigate them.
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  121. 12:49 Hi! I work with Ultra High Vacuum equipment! The reason the water deposits on the sides is due to the how the particles in the chamber interact. The air molecules are basically bouncing around the chamber randomly and the pump is just scooping them out when they reach the vacuum pump. Imagine a crowd of people PACKED in the lobby of a hotel and milling about, but they only change direction when they hit the walls or each other. The only way out is through the automatic revolving door that scoops people out as they bounce into it. More people will bounce into the door when there are more people in the lobby to bounce off of, but the fewer people inside, fewer objects to bounce off of and the lower the odds that they'll bounce into the door. Now, you're still introducing more people to the lobby from the elevator, but it's still not packed enough for them to push into the door like they had earlier. Now, because the walls of the lobby are a bigger target than the door opening, and the walls are now cold, the particles will instead condense on the cold surface and freeze, effectively removing them from the chamber. Hope that helps!
    986
  122. I want you to know that there are definitely chemists, engineers and others at Proctor and Gamble that are screaming at their computers at these videos. Because they 100% tried to point out that pacs completely disrupt how dishwashers are designed to work. But marketing teams and higher ups didn't care and forced these products out the doors.
    963
  123. I was 2nd tier tech support at Compaq back in the early 90's back when tech support was open 24/7 and free (and we would help with ANYTHING) and I prank called one of the new guys, making him try to help the issue I was having: I was playing "DOOM" (it had just been released) and every time I fired the pistol twice, The Clapper would activate and turn off my computer.
    934
  124. This is how I like to think of low pass filters "de-jaggying" (antialiasing). A low pass filter, at it's absolute simplest, is a capacitor (with a current limiting resistor to keep the smoke in) Capacitors resist change in voltage. Like a weight on a spring resists change in length of a vertical spring. So that infinite rate change stair step is slowed down by the capacitor. That's it. The digital signal tells the voltage to "CHANGE RIGHT NOW NOW NOW GO GO GO" Then the capacitor replies, "OK, will do, gimme a second, I'm getting there, plod plod plod" Simples.
    906
  125. One weird use of those sodium lamps I've seen: In high school I was in a production of "City of Angels" where certain parts of the show are meant to be in black and white. To accomplish, the production designer bought two massive sodium lamps that were placed at the front of the stage and during the "black and white" portions these lamps would turn the entire set and actors sepia toned. Genuinely one of the more interesting applications of these I've ever seen!
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  126. "Heat pumps for the win" That is the biggest takeaway from this channel, by far
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  127. Am HVAC design engineer (floor plan layouts not the actual units), one of the reasons why gas furnaces are always oversized is because that 60k BTU is the smallest many manufacturers make, and they end up being the most common/cheapest because they're used on everything 5 tons and under. To get a smaller heater, you basically have to go electric or heat pump
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  128. The thing that really helped this concept 'click' for me: there's no such thing as gray light. You can dim a white light source but it's always white.
    860
  129. It's videos like yours that have made me appreciate just how incredibly clever, complex, and elegant technologies and systems that seem "old fashioned" truly are. It feels like a common misconception that people were somehow less smart in those days when they were anything but.
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  130. Dear Alec, thank you very much. You: "isn't this fascinating?" - me, from the whole of my heart, answering loudly: "Yes!"
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  131. I am surprised they are rated in watts over there not hogsheads to the nautical micromile or whatever
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  132. You know what else gas stations do? TELL YOU THE PRICE! There's a gigantic illuminated sign with numbers on it facing the road that tells you how much it costs. One of the huge issues I see right now is insane levels of price gouging at smaller charging stations, and you basically have to get there and look at the screen (here in the UK) to work out beforehand what the price per kWh is. Being able to drive past somewhere and work out what the price is both for AC and DC charging, and then benchmark that against the next place, will be crucial for future adoption. Too many times I've shown up somewhere and balked at the price as being two or three times what it is at my local charging point and just driven off.
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  133. As someone who owns a flat-bottomed induction-compatible wok, I'd like to point out that you don't need a big kitchen gadget on the side to make stir-fry. It works like a charm with my induction stove top and gets hot in a matter of seconds without turning my kitchen into a sweatshop from an open gas flame.
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  134. Everyone knows blue jigglies can't be microwaved. Only red jigglies.
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  135. Numitron backing is grey because RCA used what they had in spades, the sheet steel with aluminium coat that was used to make anodes and internal structures for thermionic tubes, and this was proven to survive the glass sealing and gettering operations. Thus they used the standard tools they had in the tube plant, the flat anode sheet, slightly formed to be a stiff backing, and punched out the holes needed to hold the filaments. Then used the technology they had to make glass beads with wire in them, and sealed those into the holes, making the filament supports, and then simply used a flat section of that steel wire that was bent over to hold a length of thoriated filament wire, also a common item in the tube shop. Length and diameter calculated for the brightness needed at the applied voltage, and then simply placed in location, the ends folded over, then spot welded together to trap the tungsten wire under slight tension. Then at the rear spot welds to a lead frame attached to a standard off the shelf 9 pin glass base, and you have the complete unit. Glass top attached, and then evacuated with the standard roughing pump, and as a bonus because of the low voltage, and no need to maintain an ultra low vacuum, the roughing pump and the heat sealing of the tube is all that is needed to operate, no need for a getter to be installed, and no need to flash it, just a RF heating during sealing to get a high vacuum, then seal. Incidentally there were small versions made, the same size as your common 7 segment LED displays, and they were very popular, as they ran off 5V, and interfaced with logic. They worked best using CD4049/50 CMOS level shifting buffers, as those would source or sink 50mA no problem. Using a buffer/inverter per lamp, and a BCD decoder or counter per digit allowed those displays to be bright, and as bonus you could also use the blanking input on the drivers to use PWM to dim them. Project to replace those displays with LED ones worked, just that it really did not drop display current use, it was still 5A of current at 5V, though it was good in that at least you had a display that now was available, using a tiny HP 7 segment red display. Do one conversion and you had 16 numitron displays to use to fix others, so we only converted 3 boards to the LED version. Biggest problem was the resistor value selected was too low, so the LED displays were running way too bright, so had to be dimmed. Rather than destroying the cordwood board made to fit them, I simply used 2 6A silicon diodes in the common line, to drop the voltage seen by the LED displays down from 5V to 3V8, which made them dim to exactly match the old displays. Those 2 diodes were hard to fit in the limited space left on the display board. Users liked the new crisp displays, the bright version got complaints that it was so bright it was unreadable at night with dark adapted sight, and it lit up the entire cockpit. Display dimming had to match the other display, and that board used unijunction transistors, and had a disconcerting habit of the power transistor unsoldering itself from the wire leads, it ran so hot. Base lead unsolders itself, transistor is still conducting, runs hotter and lamp blows. Select spare lamp and it also blows, unless enough time for transistor to cool below 200C junction temperature. Would have been nice to have had some of the more modern mosfets that can handle 50A, but not at the age of that design.
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  136. Dude, for reconstituting you need to look to the astronauts for what they do. Most importantly you want to weigh the ingredients before and after so you know how much water is missing. Eyeballing it absolutely will lead to very dry or very moist. And then it's basically directly add warm water, warm not directly boiling and let it sit for a bit. Preferably sealed with the moisture against it directly. Though the thought of you waving a slice of freeze dried ham in front of a mister is incredible and worth subscribing to the other channel for.
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  137. I’ve known how pinhole cameras work for ages, but this explanation is the first time I’ve really understood why they work that way. The “move your head and the view changes” lead in was truly eye opening.
    808
  138. "To put ib bluntly, I like to do work on my computer... not work on my computer. And that's why I don't use Linux" As a longtime Linux proponent, I feel you man.
    806
  139. I love learning these sorts of "secrets in plain sight" facts. Thanks!
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  140. I love the greater charging ecosystem criticisms you bring up. Everyone in the industry should take these points seriously. Convenience is still key and building an artificial moat is backtracking progress.
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  141. HVAC guy here. A lot of the issues I've seen have been lack of adequate training. I've literally googled my way to competency, and that is completely unacceptable. But, they don't care as long as we figure it out eventually because the customer is footing the bill anyways. It's horrifying
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  142. The whole "it's not the volts that kill you etc. etc." always annoyed me. That's like saying it's not the fall that kills you, it's the sudden stop at the end. The higher the fall, the more likely the stop is to kill you. They're kinda dependent on each other.
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  143. Nice evaporators will have a couple features these lack: 1) a shallow trough just high enough for the wick to draw from rather than a big basin (reduces "unusable" water volume) 2) a UV light which will sterilize the water in the trough to keep it sanitary for longer periods
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  144. I'm old enough that space heaters were these metal boxes with wide-gap grilles and nichrome ribbons in them...they didn't turn off if knocked over, and it was really easy for anything to pass through the grille and hit the glowing, hot heater element. Things these days are a lot more safe. Similarly, I was telling someone that there was a time when refrigerators had latches that could only be open from the outside...and children would get stuck in discarded refrigerator with bad outcomes. We were taught to fear refrigerators when I was a kid, and adults were told to block or remove doors.
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  145. Favorite part of those incandescent C9s was when they'd be on bushes, the snow would cover them, but then their heat would melt the snow on top of them so you'd have colored holes in the snow and the bushes would look like funfetti cakes.
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  146. "Old man yells at cloud" has changed from a Simpsons gag about weather to reasoned criticism of online services 😂
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  147. To add to your spicy bit: people lend their cars out (especially parents). If charging cost is bound to the car then you need to manually go back and sort the payment of the charges with the person who borrowed your car. Instead of, you know, them paying for it immediately
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  148. I refuse to believe phlogiston is not at play here.
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  149. It's very satisfying that you made sure that whenever a sound wave was shown on screen, that it visually matched up with your voiceover. Even the DR-05's dB meters matched up in that close up of it. Also: terrific episode.
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  150. The thing that really brings the distinction home for me is that with the closeup of the slot-mask CRT, you can see clearly that the brightness of the image can vary within a single phosphor dot, in a nontrivial way depending on the shape of the image (rather than the color or brightness data at a single spot). That would not be the case if they were truly pixels. Of course, the issue gets confused somewhat by the way that systems with LCD screens can do "subpixel rendering" by tweaking the color data in a manner that exploits the spatial arrangement of the red, green and blue elements to provide a bit more spatial resolution. But from the physical LCD's perspective, it's just rendering color data as usual.
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  151. Your original videos on this seriously helped my depression. I started doing “depression loads” and not pre washing my dishes before loading and throwing in extra detergent for the pre wash that I wasn’t doing before. And I’ve gotten into the habit of cleaning out the filter every time I unload. The dishes used to be my wall of “can’t” and not it’s not. I can’t thank you enough.
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  152. You need a counter for "we'll get to that later" which counts up and then back down as you, well, get to those points later.
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  153. Now I'm wondering, if you had your TV plugged in to your Clapper, and the Clapper's commercial came on, would the claps in the commercial turn off your TV?
    701
  154. Lets look at the comments. Oh. They're 1500 watts.
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  155. One application where Peltiers are great is cooling mobile electronics, like the sensors in high performance digital cameras. When recording at 4k and higher resolutions they generate a TON of heat, and a Peltier can help move that out into the air. Not only does this prevent the camera from shutting down, but can actually increase image quality.
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  156. I am here for this heat pump content. It's hot! (Get it?). Pump it out! (Ok, I'll show myself out...)
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  157. Your videos are great!
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  158. I am a HVACR professional and I now train others in the HVAC industry. This is solid gold. I strive to instill in my trade that we have been constantly oversizing equipment for as long as the trade has been around. I converted to what is called a dual fuel setup about 10 years ago that is a heat pump with gas backup heat (lots of boring details as to why I went with that setup) When I bought my house it had a 120,000 btuh furnace installed. I now heat the house with a 3 ton heat pump which matches the cooling load on the home it is matched with the smallest furnace I could get that can provide airflow for the HP and has the capability to operate at 40% of its rated capacity. I live in a cold weather climate and with some minor help from the furnace on that colder than cold day once In a while it keeps my home very comfortable. Using similar thermostat technology I can track my power and gas usage and typically my furnace runs less than 15 minutes per day most days. And that runtime is almost all when the heat pump is defrosting. My area has incentives from various agencies and organizations will completely if not more hand cover the equipment cost to the contractor for the cost differences in the equipment from AC to HP units. Installation cost differences given modern thermostats is almost $0 A lot of what someone people will call out as flaws in his analysis are not reading between the lines in his data and methodology. You simply cannot give a masterclass on absolutely everything that goes into this stuff in one hour! Some details are left out. Great video Anyone who says otherwise is definitely selling something
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  159. There is a significant difference between thermoelectric cooling being good and a thermoelectrically cooled toy "refrigerator" being good. Thermoelectric cooling works to cool energy dispersive x-ray spectrometers (EDS) without transmitting vibrations (say, to the electron microscope to which the EDS is attached - electron microscopes do not like vibrations).
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  160. Drip coffee machines are the dishwashers of coffee makers. They're consistent, reliable, and effective AS LONG AS YOU USE THEM PROPERLY. If you weigh your coffee and use the same mass of coffee each time, the other variables will make a much bigger difference (bean freshness, how recent the beans were ground, whether you're using an insulated carafe). Plus, guess what I'm not doing while my drip machine is making coffee! Yep, you guessed it! Making coffee! Great vid, Alec.
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  161. 3:27 That shot! Dude!
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  162. Its amazing to me how much of an engineering marvel a pinball machine is. No matter what era it's from. They are a perfect example of art, engineering, and design being merged together perfectly to just entertain people for a few minutes at a time. Can't wait for part 2.
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  163. What astounds me is we had filament bulbs 'forever' and when CFLs hit, i replaced all my filament bulbs with those as they died. But by the time my CFLs started to die off, LED bulbs were here.
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  164. When I found your channel a long time ago when you only had a few tens of thousands of subscribers I wanted to copy your set almost exactly. Seeing as though you have now passed me in subscribership, I'm glad I didn't do that 🤣
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  165. Cooler than I thought indeed, what a hot topic. Feeling grounded now, despite not being a common subject!
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  166. Correction: Tesla HPWC's in fact do talk to the car, in the same way that superchargers do, and the car can even download and push firmware updates to the HPWC over the cable, as the Gen 1 and Gen 2 HPWC's don't have internet connections themselves. Pretty crafty, but not especially necessary in most cases (OTA firmware updates). https://teslamotorsclub.com/tmc/threads/charge-connector-update-in-progress.112886/
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  167. That little audio gap in the music to help illustrate the over sampling/ tape gap workaround, was absolute genius! Awesome Idea!
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  168. Blue LED Christmas lights trigger the same “fuzziness” in my eyes that black lights do. They’re really hard to look at. Pretty stoked to see these Christmas lights.
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  169. Half-frame 35mm is larger and better resolution than Kodak Disc, so I don't think its failure to catch on was a quality issue. And composing pictures in a vertical format doesn't seem to be an issue for most people (smartphones have shown that, for better or worse). So it's surprising that this was a niche format, you would think less fumbling with loading film would have been a big selling point.
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  170. Ok, free idea for outlet manufacturers: A duplex recepticle with a small (sliding recessed?) switch that lets you toggle one of the receptacles between the "always hot" and "switched" input terminals from the front. So now you can wire all both the "hot" and "switched" bus to every duplex outlet in a room, and the user can easily select which locations have a switched outlet and which are all always on. This isn't the cheapest to install, but it's by far the most flexible and frustration free for the user. (Especially if the mode toggle has a neat little indicator when the outlet is in switched mode.)
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  171. I do agree with much of this. However, there is absolutely still a need for more public charging spaces. Being that I have driven EVs since 2011 I do wind up with unusual circumstances a few times a year where I need to use a public charger. One of the barriers to this infrastructure development is that not enough people need the chargers on a regular basis, which affects the income of the operator, thus creating a situation where the do not want to invest in new stations. So the number of public chargers you need compared with the number of EVs in that area is much wider ratio than gas pumps per gasoline vehicle. That's because most EV drivers don't need the public chargers on a regular basis, but gas drivers rely on gas stations 100% of the time. However, in order to get more people comfortable driving electric vehicles, we need to have a much better charging infrastructure in most of the country. Because of the conundrum I think the only way to solve it in the short term is for some government money to be spent on some basic charging infrastructure.
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  172. An alternative take on "You don't hate your heat pump, you hate your thermostat" would be "You don't hate your heat pump, you hate the guy who installed it" If your heat pump seems to break all the time (like several times in one winter) get a different company than the installer to check it.
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  173. Thanks to the resources you present here, I was able to: 1) compare my natural gas and electricity costs directly in kWh to find the breakeven CoP (3). 3) use historical weather data for my location to see that my winter temps are above 17 degrees Fahrenheit ~100% of the time. 2) use the NEEP list to find multiple heat pump models with CoP > 4 at 17 degrees Fahrenheit. Now I know that replacing my natural gas furnace with ductless mini-splits will decrease my heating costs. Thanks Technology Person!
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  174. glad you mentioned censoring captions being bad practice, youtube's autocaptions do it sometimes and it's absolutely infuriating. If it's not censored for those who don't need captions, it shouldn't be censored for those who do!
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  175. Oh boy I sure do like my USB C 3.2 Gen 2x2 ports! What a great name!
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  176. This is why Sony and Philips both initially only advertised the CD as being able to hold "one hour of music", not its official maximum capacity of 74 minutes -- because that's the longest length of U-Matic videotape that was available at the time.
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  177. RE: chroma dots @6:27. Your speculation is correct. The chroma signal is encoded by "wiggling" (modulating) the Y signal within that range. I find it helps to understand this by looking at the signal from the perspective of the TV doing the decoding. A black and white TV has two radio demodulators, one that locks onto the sound sub-carrier to demodulate the sound (which is FM encoded) and one to lock onto the video sub-carrier and demodulate the video signal (aka, Luminance or Y), which is actually AM encoded. These two radio demodulators are essentially independent, apart from the fact they are tuned to two signals that are right next to each other on the dial. Early TVs are actually really simple, electronically. All they do is take the output of the video demodulator (which is a nice voltage between 0v and 1v), detect the horizontal and vertical sync pulses (which are used to lock the frequency/phase of the two flyback transformers controlling the CRTs vertical and horizontal scanning) and then send the remaining signal directly to the CRT's electron gun to control the brightness of the electron beam at that position. 0.33v Represents black, 1v represents white, while 0v represents a sync pulse. The most logical way of adding color to such a system would be to add a 3rd radio demodulator, one which picked up 3rd sub-carrier and decoded a chroma signal. But this would make the TV signal take up more bandwidth, and the FCC had already allocated 6Mhz channels. Additionally, you would have to replace all the black and white video equipment in the recording studios and transmitters to carry and transmit this extra signal. So instead, the two demodulators are left untouched and the chroma signal is actually modulated on top of the Y (aka Luminance, Black&White) signal to create a combined Luminance/Chrominance signal (which replaces the Y signal and decodes fine as a Y signal on old Black and White TVs). Color TVs actually have to demodulate the demodulated the combined Y/C (Luminance/Chrominance) signal a second time to extract the chroma I and Q signals. The chroma signal is encoded in the high frequency of this combined Y/C signal. A black line on the TV would have a Y/C with a constant 0.33v across the entire line. A white line would have a Y/C signal of a constant 1v across the entire line. For a solid colored line (say bright-green) the Y/C signal will fluctuate between 0.93v and 1.07v at a rate of 3.58 mhz. The phase difference between those fluctuations and the 3.58 Mhz color burst signal at the start of the line encode the hue of the color, with 225° representing green (178° for Yellow, 100° for Red, 0° for blue). The height of the fluctuations represent the saturation of the color (±0.07v represent 100% saturation and ±0v would be 0% saturation, or grayscale). The average height of the Y/C signal of course represents the luminance. For complex lines with multiple colors, the fluctuations in Y/C won't be a constant 3.58 mhz, as it will speed up and slow down rapidly to change into the correct phase for the color at each location on the screen. To decode this complex signal, first Color TVs have to split the Y/C signal by frequency. Early Color TVs would have used a Notch Filter, with a range of frequencies around 3.58Mhz (say 2.8Mhz to 4.1Mhz) being extracted as the chromance, while the rest (say 0 to 2.8Mhz and then 4.1Mhz to ~5.5Mhz) being interpreted as Luminance. Frequency in a luminance signal is the rate of change of brightness across the line. A solid color across the line would have a frequency of 0hz. An image with vertical b&w bars across the screen, each about 1/10th of the screen wide, would have a frequency of 0.2 Mhz. With vertical bars 1/100th of the screen wide the frequency would be 1.9 Mhz. If you had vertical bars which were were about 1/188th of the screen wide, a color TV would actually interpret it as color infomation and show a solid color. (A number of 8bit computers like the Apple II actually took advantage of this to create color). But as the width of of the vertical bars got thinner and the frequency increased over 4mhz, they would become visible as black and white bars again. Modern TVs use Comb Filters that use the infomation from previous and following lines to extract a much better Luminance signal that preserves most detail even around 3.58mhz. See this document for more details: https://www.intersil.com/content/dam/Intersil/documents/an96/an9644.pdf So what are chroma dots? They are simply the actual chroma infomation which has been modulated right in the middle of the luminance signal. B&W TVs that were manufactured after NTSC was standardized are meant to the same notch filter that color TVs use, and simply discard the infomation with that frequency.
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  178. Nothing more satisfying than the CHONK of a contactor being energized.
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  179. A while back I bought the clapper to turn on a couple of lights aimed at my dartboard. I figured out really quick that the sound of a dart hitting the dartboard and then the echo made in my garage triggered it to switch my lights on and off. So, it became part of the game... Throw one dart in light, then the next in the dark, and the 3rd in the light again
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  180. Dude, I could not love this channel more. I've been working with electronics and circuit boards and whatnot for years, and I've never seen someone 'trace' the... heh, traces... and explain the function of a piece of consumer technology in such a clear way to a generally-layman audience. Fascinating and well-done. Thanks for the effort.
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  181. I bought an expensive dishwasher due to your advocacy (it has a crazy capacity/compactness with 3 drawers, small for cutlery) and 3 sprayers. If the information they provide for them is correct, both the extra space and the more efficient systems should be a saving over its warranty period, though electricity is pricy here. The other tradeoff is longer cycle lengths for the maximum economy. I had never used a dishwasher, and was reliant on your explaination and advice. Shortly after the birth of my son I became disabled and my wife would spend over an hour at night doing dishes and getting only 4 hours sleep. Your videos were life changing for our family. You have saved us hundreds of hours labour far in excess of the expense of operating it. Thank you.
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  182. I appreciate this one last long, effortful video before no effort November hits
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  183. Regarging early tv: I think the most amazing thing was that they would shoot live TV-shows live for the east coast, radio the live signal to the west coast on a non-standard frequency, film the broadcast, develop the film and then broadcast a projection of the film live to the west coast because they had no way of time shifting otherwise. TV Studios would use more film than actual hollywood at the time.
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  184. Appliance Repair Technician here. 7:36 The "second hidden sensor" for water level you pointed to is actually the High-Limit Thermostat which opens at 200°F in the case that the heating element runs away.
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  185. For everyone suggesting that he attach a massive battery to the UPS ... it was supplied by his mums workplace and i bet he doesn’t want to muck about with it.
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  186. I have a couple of light switches in my house that have those little neon lamps in them. The neon's on when the switch is off, so you can find the switch in the dark. Pretty neat.
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  187. Don't ever let the credits music die!
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  188. As for the difficulty with reconstituting the milk: if you mix the desired amount of powdered milk with a very small amount of cold water, you should be able to create a slurry which will allow the fat to emulsify. Then you can add the rest of the water. I do this when making cocoa with pure cocoa powder (I don't use sugar). It faces the same basic challenge due to the high amount of fat in cocoa powder.
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  189. The best solution, obviously, would be just to learn how to blow glass and construct new bulbs yourself out of colored glass.
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  190. When I renovated my garage to make it into my "studio" I chose to put in 20 evenly spaced octagon boxes and bulb holders for the very reason of choice and future proofing. Had I installed 4 ft led fixtures, if one goes bad I had better have a spare or I'm f-ed. Not to mention the ever changing technology advancements in lighting, I figure the bulb holders are the smart way to go. Also helped that it was far and away the cheapest option.
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  191. Fascinating! I never knew about this. Thanks for the video and thorough explanation.
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  192. "Long been thriving in the homebrew scene." You have no shame. NONE.
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  193. TC writing part 2: "This is going well, I should be able to talk about everything I just thought about in part 3 and be done." TC writing part 5: "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA-"
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  194. I built water heaters like this once. This doesn't matter, but the foam is injected with the lid off at just the right amount to expand by the time the lid is assembled on the line. The extra holes in the lid is just a multi-use design for many different tanks, such as tanks with multiple fittings for dual zone or aux floor heating.
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  195. Former HVAC sales rep here. Great video! While attending a hvac training, I was giving a rather shocking Stat, less than 10% of hvac sales in 2022 had a load calculation preformed prior to the sale of a new system. I'm not innocent either, as I was never told what or how to preform one of these and became part of the problem. The more I learned in that role the more shocked I was at how much damage and headache I likely caused for homeowners. Your comments on the lack of communication between departments is actually rather accurate and something that has, as of late become a much bigger focus for the company. (who I still work for under a different position, in another trade department) so atleast at our national company things are changing and loadcalcs are becoming a much larger focus company wide. The issues of system sizing has been a regular cause of issues, callbacks, and heachaces for us and the customer.
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  196. 'Darkening the Blue' sounds like an amazing pop fusion jazz album, that I now want to hear.
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  197. Three consecutive utterances of "aluminium" and "autumn", and you are duly forgiven.
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  198. Turning on massively large lighting systems with a more or less simple wall switch actually did make me curious how it could. Now i know!
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  199. "a latent image of vaporization" got me. the dedication to your extremely silly jokes is equally admirable and infuriating
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  200. Pretty certain the H is actually a large MOSFET called an H-Gate. The bright H is the gate and the dark squares on the top and bottom are the drain and source. I'm guessing the infrared sensitive material is impregnated onto the h-gate in order to induce a voltage to switch the transistor, which in turn provides enough current to switch the larger one beneath it. The advantage of this design is that you can have an extremely low standby voltage to switch on a relatively high powered device like a floodlight.
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  201. I was loving this video completely the normal amount (which is already a lot, given this channel) but when the holiday lights came out, that was a +3 smile bonus immediately 🎄
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  202. Also from everything I've seen just investing less than $100 in a vacuum sealer can help prevent freezer burn and extend foods freezer life. Between that canning, drying, and fermenting and just buying some already freeze dried stuff you'd maybe want in an emergency seems more realistic. A small solar power system to run a chest freezer probably costs less too and can be sized up to include some other fun things that are useful.
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  203. I think the brake light NEEDS to be accelerometer based, (or based on using the speedometer and calculating rate of declaration) because if you used the regen alone, it might turn your brake light on even when going a constant speed (down a hill, for example. you don't want your brake light coming on if you are maintaining the speed limit but still getting significant regen).
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  204. One thing that I think you missed that would be worth mentioning: the fact that CDs are constant linear velocity, and thus that the rotational speed of the disc changes over the course of the disc.
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  205. Nice use of tint during the explanation!
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  206. That photoelectric alarm that went off every time the dryer was on likely failed due to lint! The microcontroller typically adjusts to the background level of radiant light detected. When dust builds in these detectors, they can sometimes trigger due to the reflectivity of the dust on the far side of the chamber bouncing light around. Sometimes it's because turbulent air will knock dust loose to float through the chamber. I can only imagine that, over time, tiny lint particles built up in the detector, so the air turbulence created by the dryer would knock that lint off the walls to float through the beam. For future reference, you can pop the cover off and clean out the sensor with canned air. Less plastic in the landfill!
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  207. I love how with every topic you cover, you start at the super basics and slowly work up through progressively complex explanations. There are times I watch your videos on a topic I consider myself very knowledgeable about but because of your detailed explorations of that topic and well-structured development from history to early models then to more complex modern technologies, I find that I learn a lot about the things I thought I already fully understood! Definitely one of my favorite channels of all times.
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  208. 100% agree with you on needing payment systems on each charger. Yes, it raises complexity and maintenance, but it increases reliability in the "I'm standing here right now" sense - not being able to charge your 0% car because some web service is down in the cloud or there's a problem with your account would be infuriating.
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  209. Good to know induction technology is expanding to account for different woks of life.
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  210. The tough thing for me is trying to find replacements for all in one led fixtures because by the time the light starts to fail, the company doesn't even make them anymore in that style, in fact it's so old it not even on their discontinued list anymore. So then I go down the rabbit hole of trying to find a chip that can safely work for that driver but the specifications for the driver are extremely confusing and I just give up. And when it's a commercial building you can't just replace on light fixture in a room full of them without having to change them all so I'm not entirely keen on them for commercial use when you have 20 of them and the product is sold a unit that no longer exists.
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  211. "I will fix the Yeti someday." -Joe Rohde 2013 I hope he does, I would love to see the Yeti in his full glory.
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  212. I think you got a lot of broad-based opposition to CFLs. You had left-wing environmentally minded people hating them because of the heavy-metal issue, and you had right-wing libertarian/conservative people hating them because they were being forced on them by the government. Combine that with some of the other issues with them and it was a recipe for everybody hating them.
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  213. HVAC technician here. Your explanation and overview was great! However you missed one key safety feature, the rollout switch. This is there to stop operation if positive pressure from the blower motor is entering the heat exchanger through an existing crack. That positive pressure will prevent the draft motor from doing its job and flames will rollout of the heat exchanger. Set to trip if it detects flame!
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  214. Well that's concerning! Seriously, how do dozens if not hundreds of engineers forget about brake lights? Those are pretty important!
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  215. One interesting part of the water heater that you didn't mention (because that isn't part of the story you were telling) is those things on the water pipes near the top of the tank. They are Dielectric insulated unions, which provide dielectric insulation between two dissimilar metals, which prevents galvanic corrosion. The tanks are usually steel, and the water pipes copper, so that insulation is needed between them.
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  216. Here in Australia the use of reversible heat-pumps is very common so those videos always give me a good laugh, we've got a three decade old Carrier unit and some other modern high efficiency Mitsubishis (split systems are very common here) however it doesn't get all that cold here but the more southern states do rely on gas heating a lot more than up north. About a decade ago the government also subsidized insulation installation for 1.2 million homes for AU$1.5 billion (approx. one B-2 Spirit stealth bomber), the program has since saved >100 TWh of electricity, pushed back the growth trend of natural gas consumption by two years and saved an equivalent 27 million tonnes of CO2.
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  217. freezing to create heat. my mind is suitably blown
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  218. As a 45 year veteran HVAC company owner, you made a GREAT episode! Also, the pith was outstanding!
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  219. The biggest game changer for these: get a double walled insulated carafe and dump your pot of coffee in it. Coffee is kinda like French fries where heating it up after its cooled too much is a bad time. A good sniff test for a quality coffee machine is if it includes a double walled coffee pot already
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  220. I genuinely cannot express how excited I got when I saw the title and who it was from! You videos are so wonderful and I’m depth that personally i find them to be a treat
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  221. Try UV-curable resin. It's pretty thick, so it sticks well, and you can easily do multiple coatings. And the best of all, just shine a UV light on it and it's ready within seconds. I'm using it myself with fluorescent dyes to create vibrant red and orange colors from blues.
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  222. Alec, your genuine gift is how you break down the concepts and organized your presentation. Your camera work, editing, and audio... all have steadily improved, too, as you've advanced the scope of your channel. Well done, as always!
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  223. My favorite technical jargon during this video was "squeezy bits". 7:02
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  224. A quick explanation as to why the laser diode is lit all the time; what you're seeing when it's not writing is the laser diode in bias mode, laser diodes are very slow (relatively speaking) when switching from off to on, so the diode is kept on at low (bias) power which enables it to switch to writing power much faster.
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  225. Sir, your videos are just awesome. The quality, editing, dry humor and easy to understand informations are absolutely brilliant. Definitely one of my favourite channels. Keep up the good work!
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  226. My mother-in-law bought a new tree with LED's and nearly returned it last year until I told her I had watched the video from last year JUST the day prior. She put clear nail polish on each LED and it IMMENSELY reduced the hard light spots from each LED. So seriously, thank you for the legitimately useful experimentation!
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  227. Singapore uses PAL. That's probably why the VCD movie was a little bit to fast.
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  228. Pro tip: if you need a mask, you can cut one out of a sacrificial test print, rather than making one out of construction paper. Then tape it to a stiff piece of wire as a handle. Great video!
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  229. A lot of these design features seem to be quite common here in Europe, at least every fridge I've come across does everything very, very similarly. With every video you come out, I get an increasing notion that you'd have a blast travelling here and seeing how all our thingymagigs works differently from their US counterparts
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  230. As a lighting nerd (I work on the science end of the lighting industry), I was excited when I started seeing LED Xmas lights years ago, then learned how much harder it was to make warm white, then rectified lights. I wasn't a fan of the purples and orange lights you spoke of, but took it in stride as progress. Now when discussing lighting design and our emotional (and circadian) response to lighting with others, the lights of yore are something I miss. Thank you for reminding me of something I'd long accepted as "that's just the way it is now" so many years ago. There's a certain part of me that both cringes and appreciates that as technology moves forward, we still manage to bring it full circle to as close to a 1:1 of what we used to have. I'm glad you're enjoying these. :)
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  231. The video starts out in darkness lit by candle light. "Gather 'round children. And I'll tell you a horror story of latent heat."
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  232. I think this was your funniest video till now! Laughed out loud multiple times.
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  233. I'm living in a campus apartment and the dish washer has always been really unreliable. I always used powder detergent because of price really. I just tried pouring some powder before starting the machine (my washer doesn't have that second section) and it worked wonders! I can finally use this thing instead of using it as a drying rack.
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  234. Very nice work. Greetings from a PIR nerd. Some notes - the hidden "disco ball" mirror array inside some sensor devices are actually an array of parabolas as in car headlights. These are individually designed to focus infrared light from a specific incident angle to the very center of the pyroelectric crystal elements inside the detector. Similarly, the lenses in a fresnel lens-array are also each designed to focus light in the same manner, such that from a selected coverage pattern of incident angles, each has a lens that causes light from that direction to be focused to the middle of the detector. As part of the design process the effective coverage pattern pattern is raytraced with a simple stochastic photon model from the detector crystal elements out and through lenses and/or parabolic reflectors and into the environment. This gives the predicted coverage pattern which conceptually is like a cluster of big chunky and hazy-edged beams of "inverse light" - detection lobes with alternating polarity, a bit like an antenna gain map. We then analyze the predicted performance by passing thermal contrast dummies through these beams which generates simulated waveforms across the detector crystals. Based on this we can tune the design for the intended application - indoor, outdoor, different mounting positions and angles etc.
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  235. I remember having to replace a light, and the guy said "Round or square?" That was all you had to know about fixing a headlight. There are chemicals that can clean the oxidation off the plastic of lights, too.
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  236. As someone who routinely works with liquid water at 300 deg C, I appreciate your disclaimer!
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  237. There's only one solution to ground loop and clock jitter. Sheet music!
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  238. For the airbrushing solution, if you're looking to dramatically increase the durability and colour-staying power, try an airbrush varnish! When applied properly it doesn't effect the colour (So I assume the light output would go mostly unchanged) and it's what's commonly used for miniature painting to protect models from grubby dirty gamer fingers. As an added bonus, it can be applied after drying, each colour, so it doesn't add much to your current process.
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  239. Awesome video, as usual. A comment on the ventilation thing: I had a unit similar to this one in an aircraft hangar, used to charge the batteries on an electric tug. They were lead acid and, like you mentioned, required some ventilation while charging.
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  240. I did appreciate the glass top stove tangent. I was genuinely curious how those were different.
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  241. The spiciest contactors are the ones that have been in service long enough to stick closed, or at least stick closed enough to arc. Those are fun!
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  242. Your first dishwasher video legitimately changed my life
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  243. I feel like chargers at your workplace are significantly under-appreciated. I used them regularly and I think it's a fantastic use the ~8 hours that the car is not moving.
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  244.  @bosstowndynamics5488  Considering the newer model uses relays while the older one did not I'd have to assume they either somehow didn't think of that until recently, or that it was more cost effective at the time to use triacs
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  245. The first Sony Handycam in 1985 repeated the same mistakes, except even worse. It was also a record-only device, and instead of a through-the-lens viewfinder, its viewfinder was simply a hole you look through, so it gave you no indication of focusing. And Video8 was a new format at the time, so almost no one had an existing VCR for it yet, unlike Beta's eight-year head-start before the BetaMovie arrived. In fact, it's quite remarkable that Video8 didn't become yet another failed format, but I guess after losing the biggest format war in history, Sony was stubborn and unwilling to concede defeat again, so they kept on making Video8, Hi8, and Digital8 camcorders (obviously with much improved functionality over the years) all the way until the very end of the analog video era in 2007.
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  246. Chinese-American home cook here - thanks for featuring this thing! I got one a few years back and I love it to death. Got used to the controls pretty quickly. Truthfully there can be a bit of mysticism around wok cooking, particularly around the elusive "wok hei", the flavor that comes with ultra high temp oil in wok cooking. But really, not that many Chinese home cooks are getting proper "wok hei" at home, especially not in cities. For that either you would have an outdoor wok oven, which a lot of country homes in China do, or the restaurant. You ain't getting it in a home range, gas or induction. And the QOL improvement of keeping the kitchen cool more than makes up for it. Sidenote, in my old apartment with a gas range I would try to "cheat" my way to wok hei by removing the little cap on the gas burner so it would shoot out just a straight jet of blue flame. DO NOT DO THIS. But girls would get a kick out of it!
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  247. As someone who has zero color vision, I still enjoyed this one! I learned quite a bit about how light and combining it works, and a couple of the demos even still worked for me (notably the whiteboard and the big set of stuff with the red(?) etch a sketch)!
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  248. I worked in HVAC for over a decade, mostly doing residential install and service. I have been disgusted by the experiences of friends family members in recent years as the large companies now dominating the local region are obviously engaged in serious price-gouging and seem to have a policy to refuse to repair existing units in order to encourage easy, high-profit replacements. And this was true even before the economic woes of the 2020's. I'm sure that it's even worse today. Get as many quotes as practical and look up equipment prices on your own to be as informed as possible. While small, fly-by-night companies might be unlicensed scammers, experience suggests that the large companies in my area are doing most of the scamming and fraud.
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  249. I made my own version of a clapper as a kid using a noise-sensitive plasma globe next to a touch-sensitive lamp. It was weird but it worked well.
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  250. 12:10 And just like that, I'm suddenly on The 8-Bit Guy's channel.
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  251. This is awesome quality content! I don't usually donate, but the level of detail is mind blowing. Thank you for decoding the unholy mess.
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  252. Silliness Greatly Appreciated
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  253. I've been watching this channel for at least 8 years. It might've been your vid on LED traffic lights that first got my attention (algorithms in action)! Never would've expected this video from my favourite feel-good-vintage-cozy-nerdstalgic channel, but damn if it the didn't hit the nail on the head. Genuinely, this is a huge ongoing concern of mine—increasingly so—for years now. Thanks for bringing this up with the regular brilliant articulation and humour. Looking forward to that dive into WPC-era pinball as previously teased! Massive respect from Canada 🇨🇦
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  254. Here’s a better metaphor: Imagine having a phone that runs on a gasoline motor. Next, imagine that everytime you want to charge your phone, you had to got to a gas station to properly supply it with fuel. That is our current system with cars. But imagine a battery powered phone that you can simply be charged at home overnight, so that you will only be draining it when you actually use it in the day.
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  255. “LED’s use of single wavelengths is why the light looks like crap” finally someone explained to me why I hate most LED lights in a way that makes sense to me!
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  256. The fact that there is any controversy over improving the safety or just reducing the ambiguity of an activity that so many people risk their lives doing every day is so baffling. The amount of negative comments and dislikes on this video is disappointing.
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  257. “Not everybody has the time or patience for that” he says in a 48 minute video about dishwasher detergent 😂
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  258. So... we have an analog clock with a mechanical "sample and hold"...
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  259. I am starting to think that none of our world would work without that sneaky little thing.
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  260. I think what often gets lost in EV discussions, which you somewhat address here, is that EVs or any new technology doesn’t have to be perfect. It only has to be *better*. In my experience, people who are resistant to EVs focus on the unique aspects of operating an EV without actually comparing it to the effort of operating an ICE vehicle (getting gas, maintenance, longevity, etc).
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  261. Ok, a few comments: I got a slightly smaller version of this same product at Costco for $1600 -- which was the upper limit on what I'd pay. It has four trays that are a bit slimmer, but more than enough for my needs. Your opening statement about the 'preppers' and the rabbit hole of hell about freeze drying on YouTube is PRECISELY what I said a few weeks ago to some people. OMFG. You nailed that one. Things I've found: - Pineapple - surprisingly good - Berries - awesome - lowfat yogurt - OMFG SO BAD I WANNA DIE - and even worse, don't mix with water! - caramels - BLEW UP SO BIG - but quite interesting - ice cream - awesomesauce!
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  262. I've been watching your content for at least a year, and became an electrician along the way. I'm thrilled that your content is not only still amusing, but actually useful to my work. Cheers, and thanks for making it
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  263. "It's time for a simpler video" >18+ min long Never change
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  264. Even if it succeeded past these two trial periods I guarantee it would have been a PR nightmare. How often do you read the interior of DVD/Bluray packaging? You probably don't. Now imaging being say, a parent thinking you just snagged a cheap DVD for you kid in a "dixie pack", you get home and let your kid watch it. Then a day later your kid wants to watch the movie again, they pop it in, then com running to you crying that the movie doesn't work anymore, especially since nowhere on the outside of the package did it mention that the DVD would self destruct. It's perfect that it's round and metallic like a landmine because this thing would be a nightmare for anyone unfortunate enough to work in that customer service department, and probably a lawsuit waiting to happen. Not to mention now you can get some pretty good bargain bin movies for five bucks a pop now anyway.
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  265. "Assuming you have some storage" Fun fact. You can use a freezer AS electric storage. If when energy production is high you over cool the freezer, that is make it even colder than normal, then when production drops off you can allow the freezer to warm back up to normal temperature and not use the heat pump during that time. That essentially means the running of the heat pump later came be done earlier, which is equivalent to storing the power to use later. There are some huge industrial freezers that do this to save energy by working overtime when power is cheap and demand is low to help reduce grid stress and "store" power for later.
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  266. 3:13 Yes, all of you from PAL regions have actually been watching our movies in the wrong pitch. If you've searched for clips from your favorite movies and heard them with a lower pitch, you're actually hearing them in the correct pitch.
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  267. I'm imagining a wick that can traverse up and down with the aid of a pontoon float on its sides... Get that super duper tank capacity and no pump required and no drizzle sound. The wick could float to the top when the tank is full then slowly drop down (always keeping its bottom 1" or 2" submerged) totally silently 😁👍 Loved this video!
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  268. Nobody: Technology Connections: Why aren't you talking about this toaster???
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  269. Hey you said Bombardier correctly!
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  270. You say you watch the comments after upload so now is the best time to say thank you for all this content. I always look forward to it!
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  271. I think they look quite good, I'm a fan of how they fade in and out as well when changing numbers.
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  272. I'd like to add that having any kind of microelectronics circuit hardwired into your house increases the relevance of a whole house surge suppressor. At my last house, electronic things would often get fried due to noise and swings in the mains power. I finally installed a monitor to prove my power quality was terrible. It doesn't take much to fry an LED board. And during a thunderstorm, even a strike a mile away can raise your voltage to levels unkind to electronics. At least with screw-in LED bulbs, you can CHANGE THEM when they fry.
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  273. Hi! we were just sent a link to your new video! We're presently a (small) 2-person business (recently from CHICAGO), and got in this because of the same reasons you elaborate on here! We'd tried sending you a few messages last year, but I think they got lost in the pile you must receive! We'd LOVE to chat sometime! info@tru-tone.com
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  274. It is awesome to learn that the filament style LED bulbs potentially last longer... in addition to simply looking so much cooler* than many of the alternatives! * The good kind of cool 🕶️ not the bad kind of cool ❄️ as far as lighting is concerned. 😉
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  275. For the background of the design choices for this camera, look up the designer: Yoshihisa Maitani. He was a passionate photographer and felt that the half frame format let him take twice as many pictures for the same cost. He also designed other influential Olympus cameras including the OM1 and the XA series.
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  276. My pleasure!
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  277. I live in MA and I've been on a plan with my power company where they can change the temperature remotely for my AC. They do exactly what you suggest - set the temperature lower in the morning and then raise it in the afternoon to lessen load. I can always override and I still get my incentive if I override less than 25% of the time.
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  278. That tracking mechanism is devilishly simple.
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  279. Really happy you included the part about building resilience through communities at the end -- an important and consistently overlooked aspect of how we approach challenges throughout the U.S.
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  280. Another great video. Congratulations on 100k, it's well deserved.
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  281. It's worth mentioning that vinyl stereo is in a way a bit more limited than stereo on another medium like tape or CD. For example, there's a limit to how loud you can have a panned sound. If you have a really loud bass drum hit in just one of the channels, you risk launching the stylus out of the groove. One of the things I was told when it comes to dance music production is that, for vinyl mastering, you absolutely must not pan your kick drum or bassline. CD doesn't have this restriction.
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  282. I prefer for the brake and indicators to be separate, it eliminates ambiguity as you say.
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  283. "The first commercially successful game console to use the compact disc..." What a polite way to say "haha suck it NEC, Sega, Amiga CDTV and 3D0".
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  284. I bought one of those because I didn't want to have to use the shared fridge in the office in a place where I worked, it was not intended to do anything more than just keep the lunch that I'd already packed cool for a while. I think I would have done just as well by getting a portable cooler and chucking a couple ice bricks in each morning. That's what I've been doing now that I have delivery work and honestly it is the same if not cooler by lunch time.
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  285. As someone from Europe, where light switch outlets are virtually unknown, I always wondered why in movies when people switch the lights on all desk lamps and floor lamps switch on too. Now I know!
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  286. This was definitely interesting. Especially the shot with the suddenly-red etch-a-sketch. I now understand the importance of CRI in a way I never have before. Alec, I think you should take a look at my video "How the hell does color correction work??" ... specifically, the Google Doc that is linked to in the description. (I'd link it here, but then my comment will get stuck in the spam filter.) Most of the information on that document was provided by my subscribers - and it's info that I hadn't been able to find anywhere else. I also have another video coming soon about monitor color profiles. They are far more tricky to deal with than anyone realizes...
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  287. I would like to add a correction, or rather an improvement to your explanation. Around 5:10, you said former filters were not very precise. Precision in filters is given by the Q factor (blablabla you can search for it). Now, Q = (Frequency / Bandwidth). As the frequency the filter is tuned to increases, so does que the bandwidth it lets pass through. The real problem with this tuning filter is that you cannot have the same bandwidth throughout the whole spectrum, so you would have higher frequency stations having their signals mixed up under the bigger bandwidth of the filter. So yes, you are partially correct, they were not very precise, but it might would be better to say that their precision varied with the frequency. I love your channel, you seem to be so passionate about older technology! People were really clever back in the analog days. None of that microcontroller gibberish!
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  288. The only thing I felt was absent was the efficiency loss from 120V versus 240V. The overhead you mentioned is one part of it, but efficiency is the other half of the story. The higher the current, the less is lost. It seems like the difference is somewhere in the realm of 5-10%, which is not nothing but still fairly minor compared to the cost of getting a L2 EVSE wired up.
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  289. A tangent... a 100% accepted and demanded tangent!
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  290. Also, i think that turn-style electric switch could be traced to gas valves as well.
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  291. I wish you had mentioned how the scientific community found out you could make graphene supercapacitors and other graphene related experiments with the help of a lightscribe writer. They take a solution of "graphite oxide" or a super sonic mix of graphite and water. Glue a cutout sheet of plastic or kapton cut to the size of the disk with the barcode exposed. Then after some dry time put the disk into the writer to activate the solution. Apparently the laser burns at just the right temp to align the graphite solution into graphene. Sources Cornell College: https://www.cornellcollege.edu/physics-and-engineering/pdfs/phy-312/Theint-Aung.pdf UCLA: http://newsroom.ucla.edu/releases/ucla-researchers-develop-new-technique-243553 Hack-A-Day: https://hackaday.com/2012/12/21/making-graphene-with-a-dvd-burner/ ZDNet: https://www.zdnet.com/article/graphene-coated-dvd-lightscribe-supercapacitor/ Some videos Mouser Electronics: https://www.youtube.com/watch?v=P7tJKn3RIj4 A how to video, supposedly by a student from the University of Hawaii: https://www.youtube.com/watch?v=lzF7OlD7gVw
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  292. 0:40 “Very simple explanation” Proceeds to make 37 minute video that I will watch
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  293. I'm amazed how many people entirely miss the paradigm shift that is being discussed. The point is that EVs are fundamentally different in terms of how you utilize them. And everyone agrees that there are challenges and there are applications where they won't work, but my Jetta won't move a queen size bed, either. So there's that argument down the tube. I fear for people with the attitude of "because it's this way now it will be this way forever."
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  294. "For physics reasons im not quite sure of" Physicist here! There are two reasons to keep the walls of the freeze dryer frozen. First is a technical limitations of many vacuum pumps, generally speaking vacuum pumps don't respond well to water vapor so we want to keep it out. The second reason is that when you are heating up the solid water it is evaporating at quite a high rate. Even at atmospheric pressure going from solid to liquid is a roughly 700x volume increase. Additionally, at the low pressures required for freeze drying the efficency of vacuum pumps drops dramatically (applied science does an excellent explanation of this in his video on a glass diffusion pump) so they can't pump nearly enough water vapor from the chamber to keep the pressure down. Thanks to the refrigeration cycle it is very easy to make a really cold surface. When the water molecules run into the cold walls they loose energy and end up sticking together, forming ice in the process.
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  295. I’ve planned to google this for 15 years. Thank you man
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  296. When talking about modal dispersion, and TIR, you missed two points. One, is that if there are any bends in the cable, TIR applies anyway; that's the only reason that you can get light on the other end, even if your cable is coiled several times over. The other, is that almost all modal dispersion is almost completely remedied by using lasers in place of LEDs, alongside using higher quality fiber strands with less imperfections. As well as using single mode fiber cabling in multi-mode systems.You did mention that lasers make fiber faster, but you didn't provide the why, even though you explained the how beforehand. Another thing to consider, is that fiber doesn't handle kinking very well. You can staple a CAT5e cable to a wall, and crush it into a kink, or bend it 180° to where unbending gives it a permanent bulge, and it will still have a chance of functioning, even if not ideal. But Fiber will break instantly, immediately, and almost irreparably the moment it gets in any of these tough situations, unless the sleeving is reinforced. And sleeve reinforcements only help with some of the problems. It's probably impossible to fully cover every aspect properly, without making a heavily edited three hour document with multiple takes for each section.
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  297. 29:09 "Did you know 15 minutes with pre-wash could save you 15% or more on re-washing?"
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  298. I switched to dish powder a few years ago after watching your previous video, and I couldn't be happier. Less packaging waste, perfectly clean dishes and I've saved a couple hundred Canadian dollars on powder vs. tabs over this time. Thank you @TechnologyConnections for saving me hundreds of dollars, which I can now spend on Super Thanks.
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  299. You should do a show on all the subchannels in FM radio. SCA at 67khz, RDS at 57khz.... heck for that matter, /all/ of the encoding in stereo FM.... phase locked pilot tone, sca, rds, muzak, WEFAX, and digital FM radio.... digital traffic info.... all of those individual services in 200khz of bandwidth.
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  300. Why is there a Nut Glued to the speaker paper? If I may ask
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  301. I think the tangents went three layers deep today.
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  302. I always thought it was weird that of all companies Sony, the king of proprietary storage mediums, just used a standard CD .
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  303. Hairy testicles
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  304. Your point on sales being separated from installs and service is so on point. It’s happening to every industry though, HVAC, plumbing/water treatment ,automotive , Electrical, and telecommunications.
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  305. Per your previous dishwasher videos we switched from pods to powder, and it made a HUGE difference. My wife was ready to buy a new one, but now we're completely happy.
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  306. I have some experience with larger and bench top pharmaceutical lyophilizers. The end of drying cycle is triggered by increase in the product temperature. This happens when there is no water to evaporate in the product being dried and the heat being supplied to product is no longer being used for evaporating the water, since is all gone, and the products starts heating. This spike in the tray temperature is picked by the sensors on the tray ( as you showed on one of the trays) and used to take the cycle to the next stage. In commercial units; this sensor may sit in one of the product container or on tray for accurate measurement. So in the unit you showed the decision is made on the basis on the sensor on one of the trays ( and the state of drying of the food on that tray). It also means that having different food type in one lot may not be a good idea, as you have experienced. Enjoyed the video!!
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  307. "Carl, it's 1941, and we're knee deep in the war! What have you engineered to help us?" "Bubbly Christmas lights!"
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  308. One of my favorite parts of Car & Driver magazine’s long term test fleet recaps is the maintenance cost section and, specifically, the cost of replacing a headlight housing. Most are upwards of $1700 now which is just crazy when you can get 90% of the performance for literally 1% of the cost with a seal beam setup.
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  309. I used to have a radiometer until I had the bright idea of seeing what would happen to it in the microwave, fun fact, I don't have a radiometer anymore XD
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  310. Thanks! I'm working on an 70s motorcycle and know that old wiring harnesses get brittle and faded. Can only imagine trying to decode a 60 year-old pinball circuit while being gentle and not cracking insulation. Don't want to let the magic smoke out!
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  311. From someone who has been working in the EV charging industry for over a decade, I will say that you completely nailed it. I may also add that you nailed it in an entertaining and easy to understand (and share) manner. Keep these videos and perspectives coming.
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  312.  @Guest-gy9vp  Call me crazy, but I think he did that on purpose.
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  313. 5:45 is literally the best François-Pierre-Amédée Argand impression I've ever seen.
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  314. I can't wait for the CED video.
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  315. I’m surprised sony didn’t just overdrive a mini CRT to show live output from the tape head. It must lose a fair amount of light with the prism setup, too. I am impressed with the video quality though, it’s pretty darn sharp when you focus.
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  316. I just gave this a test on my US model Kia EV6 using an OBD dongle to measure the brake light value and sure enough, it behaves exactly as you described. This is even after the ELE292/SA533 software update for i-Pedal. Hyundai really needs to get this fixed for all their eGMP vehicles!
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  317. I actually work in HVAC direct to consumer sales. I completely agree with you! Heat pumps are fantastic for people who don't need a ton of heat, and are reasonable for people even in higher latitudes so long as their home is properly insulated. Also, installers are sometimes extremely greedy. We look at real costs and almost always sell at lower than our competitors. I wish more companies would be honest and reasonable in their pricing.
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  318. Also gotta be careful not to EVER let any of the brake cleaner burn, or you create phosgene.
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  319. You know, there are some videos that I see from you when they drop in my sub feed that I think "that probably won't be my cup of tea"...but god damn do you have a talent for making any topic entertaining and educational. You truly are a gift to humanity. Thank you for what you do ❤
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  320. When your film watching immersion is shattered by the slightly inaccurate portrayal of a clock's mechanical operation in a film about a man being forced to knowingly relive the same day for, presumably, thousands of years. God I love the internet.
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  321. Guess who works as a mapping specialist for an electric utility! 😏 (insert smug flashing lights here) So totally taking these ideas to our economic development director. Thanks as always Alec for the awesome job and insight!👍🏼
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  322. I started out thinking I’d need a 50A L2 circuit, and then I actually got the EV and found I only need to charge an average of 4 hrs on L1 per night to meet my needs. The biggest issue we’ve ran into is remote road trips, like visiting national parks. There are some DCFCs in unexpected places, but I definitely have range anxiety when we’re headed out camping. The pro-tip there is RV parks, if you’re willing to camp in one every few nights, because you can just bring your EVSE with you and charge at L2. I hope RV parks start catching on to this and advertising it better, there’s an untapped market of people who want to charge for a few hours but won’t eat an entire RV spot overnight.
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  323. "And HVAC companies resistant to change, which is a bigger barrier than you might expect." TRUTH! Just a couple days ago, our HVAC company came out to do regular maintenance on our current central AC system. We asked them about getting a heat pump... and they said it wouldn't be worth it for us. I know that they're wrong.
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  324. Being a member of a deaf family the subtitles are great. Thank you.
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  325. That Google rant is painfully relatable
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  326. I worked all through high school in a Fuji-based photo shop. All of the "leniency" and "will be fine" you described was on the technician printing them. We manually adjusted every print exposure.
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  327. when the original video came out i was on the verge of replacing my dishwasher since it was under preforming compared to just hand washing my dishes, i watched the video as part of a 3am YouTube rabbit hole and im glad i did because i tried out a few of the ideas the next day and it turned out saving me from needlessly going out to replace my admittedly improperly operated dishwasher. no joke you saved me so much hassle with a single video thank you
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  328. A level 1 charger at my house is WAY more than my needs for commuting to and from work. I don’t understand why people don’t get this. Yes, it’s slow, but the 120v EVSE that comes with most EVs is WAY more than most people’s needs. I get something like 7 miles per hour of level 1 charge, that’s really significant. With my base model 2013 leaf and it’s 24kwh battery (and a 1.4kw EVSE), I charge 6% of my battery per hour just with a standard outdoor wall outlet at my apartment with a 100’ extension cord (you need a 14 gauge 3 conductor cord at 100’, this is extremely important). Yeah, it’s slow, but I can charge literally 20 hours a day, and at work they don’t even charge me to plug in! I always get in my car at 100% charge. Every time. This isn’t tough to do. Also, side note, your video on level 1 charging convinced me to buy this car. Thank you. I couldn’t be happier. $8500 well spent.
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  329. I was going to make this video, but I no longer have to, because this is done better than I would have done. I still plan on making a "Why You Shouldn't Drive in the Rain With Hazard Lights On" though, which will mention this sort of thing in it.
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  330. Don't forget district heating. Very important in places where heating is no luxury item. It can use heat from power stations to heat homes.
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  331. I've used one of these for ~5 years now. Could be the same model! No noticeable reduction in cutting ability. When my mother's old-fashioned electric opener shat the bed a few years ago, I got her an electric version of this. It was built by (wait for it!) Black & Decker. No complaints once she learned how to hold the can.
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  332. I was going to be so disappointed if you didn't explain how the glass-top stoves work. Just as you "threatened" to tangent I was thinking "gee I wish I knew how that works"
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  333. I've used flicker lights in candle holders for many years. I have one additional observation. As the lamps get quite old the flickering slows or even stops. And in old, I mean 5+ years.
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  334. As long as we’re talking about Ragtime, it’s a little known fact Scott Joplin actually wrote an Opera as well. His Elite Syncopations is always my favourite.
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  335. If you're wondering about the weird hybrid mentioned at about the 40 second mark, these are roped hydraulic elevators. This arrangement allows for extended travel. For the two pistons, this arrangement is used so the hydraulic components stay above ground and avoid issues with burying the hydraulic cylinder (such as leaks going undetected in ground, etc).
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  336. As a professional on thunder and lightning, you fool, your studio is entirely enclosed and wouldn't be subject to such random weather patterns.
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  337. This is why I like the Swiss cheese model of safety. Everything has holes in its design. So long as multiple things are in between you and disaster, and the holes in those designs don't line up, everything is okay. But no matter how many layers of protection are in place, if all the holes line up just right, disaster can still strike.
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  338. To me it looks more like dark orange
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  339. CC has so many benefits beyond helping those with hearing impairments. Those with autism who can't stand surprising sound effects and mute the TV but still wants to enjoy the dialogues. Also for those who wants to learn a new language, you pop a french movie with subtitles and voilà!
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  340. If you have to use the condensate-pump method for getting rid of your indoor unit's condensation, you'll want to keep an eye on it. Make sure there's a switch installed (AND FUNCTIONING) that shuts off power to the ENTIRE SYSTEM if the pump's collection container fills up. My system had such a switch, but that switch failed in the closed position. The condensate pump failed. The collection container filled up. And kept going. And going. And going... Insurance doesn't cover water damage from broken condensate pumps. Ask me how I know.
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  341. This brings up a great point. It totally makes sense for places like Sheetz or Speedway that have full service food and beverages. To those places, gasoline is at best low margin and could be a loss leader. They want people to come in and buy stuff. It seems like AC or DC charging at a "pump" would offer the same financial benefits to those sorts of businesses. I wonder why they haven't jumped on yet.
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  342. First, thank you for mentioning the Ford Focus Electric! I love my FFE and wish more people knew about them. Second, I politely disagree with the NEMA 6-50 recommendation. NEMA 14-50 is a better solution only because it is very common at campgrounds and RV parks. This means you’ve got an existing infrastructure that is quite ubiquitous in rural areas and allows EVs to travel further afield than the traditional DCFC network goes today.
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  343. Thank you so much for untangling all of the various facts and figures on this topic. 🔌🚗
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  344. Congrats on your new studio! You only have 305k subs, but you make videos as if you have 3 million. You have one of the most interesting and highest quality channels on the platform. Keep up the great work!
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  345. Glad I have a dishwasher, had I hand-washed the dishes tonight I would have missed episode two of "The Dishwasher Chronicles—Alec Cleans Up"
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  346. 20:46 According to Wikipedia, with those retroreflectors, the lunar distance can be measured with an uncertainty Beyond Belief (tm) -- or about 1.1 millimeters.
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  347. I’m starting to think you quite like these heat pumps
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  348. Epic Mr. Delicious t-shirt. -John
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  349. 6:07 The other-other clever part of modern toasters, is that the yellow wire is connected part-way along the heating element, which reduces the voltage to say 12 Volts. The diode then rectifies that to power the circuit, a bit like a tap on a transformer. ;) (obviously it's not isolated from the mains, but it doesn't matter as long as the outside controls are insulated.)
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  350. From an electronic point of view, there was very little about Betamax that was measurably superior to VHS. There was almost nothing about the technology that you could point to and say "Yes, because Beta machines have this or do *that*, the picture ought to be much better than VHS". Yes, Beta had a very slight quality advantage over VHS (at least before 30 years had taken their toll on the hardware!), but it was never any more than that. The idea that Beta picture quality was somehow night-and-day superior to VHS is a myth that, hopefully, has finally been laid to rest. Although I wonder if people were comparing SP Betamax to LP VHS? In which case, clearly, Betamax would have been very obviously superior.
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  351. We run gas discharges in the lab I work in, and a stable discharge is fairly sensitive to the gas pressure. They flicker both if the pressure is too high or too low (ususally too high, in our case). And like you said, some gas mixtures are much more prone to flickering than others (usually ones with water vapor, in our case). Not sure what the physical mechanism of the flicker is though!!
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  352. @11:33 The reason the complexity of the consumer televisions escalated in the late 40s was due to all of the developments during WWII. This dumped thousands of well trained electronics technicians into the 1945+ job market as well accelerated electronics R&D thanks to those new fangled computing machines and other fundamental breakthroughs.
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  353. When you said "it's an entirely different kind of content altogether" I didn't even skip a beat. I said it in unison along with all of the versions of you. 😃
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  354. Those lights are flashing at a rate of once or twice per second. That’s 500-1000ms minimum of additional delay before the driver behind can see that it’s a turn signal! Amazing. Had no idea this was a thing in NA. Edit - For those wondering: a flashing light and a solid one are identical until enough time has passed that the flashing light turns off for the first time. You don’t know that it’s periodically flashing until it switches back on again for the first time but I wanted to be generous.
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  355. 12:58 "in many cases, banks of street lights are wired to a central location, and a single one of these is used to control a contactor at the distribution point" Gee, I wonder what those contactor thingies are! Also I love crossovers :)
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  356.  @TechnologyConnections  Yeah, but you exploded TWO neon bulbs in your video, and Clive didn't. LOL
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  357. imagine a comeback so savage that it distills coal
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  358. I legitimately changed my dishwashing behavior based on your first set of videos. I started running my kitchen sink until the water was hot, I switched from pods to powder detergent for the main wash, and liquid detergent for the prewash, and I've been very happy with the results. Glad to see a more accessible update for people who aren't about to watch an hour long video about dishwashers (plus another ~hour long Connextras video)!
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  359. There’s a speed setting on mobile. Set it to 0.25x and pause every screenful to read. On desktop, pause and use the “<“ and “>” keys to advance or rewind frame by frame. Now next time technology connections or any other silly youtuber decides to do the fast scrolly texty boi, you’ll catch their hilarious gag.
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  360. In the past when the store's only had the wash pods or tablets available, I have just used two: one in the main dispenser tray and one directly in the basin. It's slightly more expensive to do it that way, but my area has hard water, and the difference is night and day.
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  361. And now you’ve made me unable to say “swamp” without seriously thinking about how my mouth moves because the word is funny. So thanks for that.
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  362. Having JUST RECENTLY made a trip to Tennessee in a not EV, I can attest that if we stopped to charge instead of fueling up, we wouldn't have had that drastic of a change in travel timing. Think about it: - Stop for fuel - Grab a snack/meal - Use the lavatory All this can be done and you'll likely burn the same time as an EV takes to charge. It's not like we're really sacrificing that much more time to use zappy go juice instead of dino go juice
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  363. I took an HVAC engineering class and you pretty much hit the nail on the head on all of the individual home details that need to be factored in calculating the heating/cooling requirements. Kudos!!
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  364. I"m so so annoyed that the 5 in Nixie tubes is just an inverted 2
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  365. Most have EEV’s or electronic expansion valves. Only one valve is required in the outdoor unit this is why the small line needs to be insulated. As in cooling mode the small line is now a low pressure liquid line.
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  366. Great video. Thanks for making this one.
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  367. You're awesome and deserve more subscribers!
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  368. Looking at the dashboard readout at the end of your commute, the worst number on the range-meter was 82 miles. Add that to the 70 miles you drove, and you’ll get 152 — and that’s the worst it will do. Which is still more than double your commute. That’s excellent.
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  369. Bedankt. You know how to turn absolutely boring subjects into interesting videos. And suddenly the subject is not boring anymore! You're great, keep up the good work.
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  370. reminds me of the IBM quote "A computer can never be held accountable, therefore a computer must never make a management decision", and yet it's moved vastly beyond "management decisions".
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  371. The radiometer, the flood light, and the window is my favorite C.S. Lewis fanfic.
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  372. I have never owned a dishwasher, either in the states or in Europe, where I did not have to wash the dishes before putting them in the washer. All those things are good for is rinsing and sterilizing. EDIT: Ok. I decided to try out your advice, Technology Connections. I put my dirty dishes in the washer, not even scraping them. Ran the hot water until it came up, and put a pack in the pre-wash and the wash receptacles. My washer only has a bottom sprayer, so I was not full of hope. But, one hour later, I open my machine, and Voila! Everything was spanking clean! Wow! This will save me a lot of labor and time, which is important as a single father of three. Can't thank you enough!
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  373. Just a side note for people: here in the Southeast we use heat pumps all the time, so the "HVAC industry" is very location dependent. This channel is very Midwest (and Northeast) oriented, not that there is anything wrong with that (Seinfeld reference lol)
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  374. starts mentioning Ammonia as refrigerant me, an intellectual who watched every episode of Citation Needed multiple times: "He's gonna mention Thomas Midgley Junior, isn't he?" mentions Thomas Midgley Junior me, doing the Ash Ketchum-pose: "I KNEW IT!"
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  375. I absolutely love your videos, I have been watching them for years! You make incredible content, and I have loved electromechanics my entire life. Pinball is one of my favorite things ever, thank you for another amazing video! Can't wait for part 2!
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  376. Two notes make a chord!? You'll surely anger the music theory gods with that one..
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  377. 19:00 my old Tesla Model S had a CCS2 adapter. That adapter had a thermostat that disconnected the control pilot of the adapter got too hot. That in turn immediately halted the charging session. The thermal conduction to the charger and car thermistors should cover it. But if not, there was a other failsafe. Never had it happen. Good to know it was there. 👏
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  378. "Long Life" flashers using 13V rated electrolytic capacitors on a 13,8V+ circuit, very good.
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  379. The day of the week and position of the stars had more to do if the burn failed or succeeded, rather than if it was +/- , or so I seem to recall.
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  380. This message brought to you by Too Many Small Kitchen Appliances
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  381. When you said "our old pal," my mind went right to Thomas Midgley Jr.
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  382. I Service HVAC systems on passenger trains, and everything is preset and automatically controlled. The system is set to run the heat or A.C. as needed to achieve the preset temperature. There is no way to change it other than turning off breakers, which are located under the train car. They do include an override button, that runs the A.C. for 20 minutes to cool off the car in the event there are a lot of passengers. 100 people have a lot of BTUs of heat. I thought I'd provide that little bit of insight since you asked of anyone knew of a thermostat with the feature of running and then returning to the set temperature.
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  383.  @TechnologyConnections  Inexpensive LED lights also flicker, being built around a half-wave rectifier with little to no smoothing. The resulting mains-frequency flicker is noticeable to some and really annoying to a subset of those. I'd love to see an LED string with an adjustable constant-current power supply ("dimmable," no flicker), but no dice on those in big box stores.
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  384. The main reason I don't subscribe to certain channels is their frequency of uploading. I don't want my sub feed cluttered.
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  385. your videos on dishwashers have literally changed my life. That sounds exaggerated, but unfortunately it is true. I used to spend hours a week cleaning dishes just to put them in a dishwasher for them to get washed again! My house is so much cleaner not having to spend all my time washing dishes but letting the dishwasher do all the work and now I can instead focus on cleaning the rest of my house with my time! Thanks!!!
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  386. The only thing I don't like about using credit cards at chargers is the preauthorizations. Every charge stop authorizes the card for $20-50, which is a lot of money you don't have access to for up to a week when you have to make five or more stops in one trip. Gas stations do this too, but you are more likely to spend that much or more on a fill-up anyway, as opposed to charging where I rarely go over $12 at each stop. Credit cards should always be an option, but they really need to change the preauthorizations to be closer to what you will actually spend.
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  387. There's something wrong with this video. It keeps stopping at the 9:31 mark and I can't get it to go further.
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  388. Alec: "I glanced at my collection of typewriters..." Me: "Ha, of course Alec has a collection of typewriters!" Alec : "Are you really surprised that I have a collection of typewriters?" Me: "I am offended you assumed I would be surprised!"
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  389. Dude, you make the most mundane stuff just awesome. I think I love you..... thanks!
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  390. I went out of my way last year to order a dual-hose unit and wait for my hardware store to get it. Great decision, still noisy as hell but it really cools the room well.
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  391. Look at that early SMD work! It’s always hilarious to see how they GLUED components to the board for wave soldering. This is excellent content. You deserve a raise. In fact, I’m raising my contribution now.
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  392. Great video! A few things that might be of interest: - Magnetic sound on film was more of a feature of cinema sound than you might have realised. When CinemaScope premiered in 1953, the wide image was only half of the selling point - the other was the 4 channel high fidelity soundtrack, which was achieved by putting 4 magnetic strips on the edges of the film. This 4 channel layout (Left, Centre, Right, Surround) is what Dolby would emulate when they came up with their Dolby A encoding system utilising the optical soundtrack. (btw Stereo sound for cinema has always meant at least 4 channels, not 2 as is the case in the home). The original Cinemascope was also a wider ratio (2.55:1) than what became the 'Scope standard (1.35:1) because it originally widened the image into the previous optical soundtrack area. This "Mag-strip" was also utilised for the 70mm format, with 6 channels recorded onto the edges of the film. 70mm never had an optical soundtrack. Even once filming natively for 70mm became a rarity, big films were still often optically 'blown up' onto 70mm release prints pretty much purely to take advantage of the better soundtrack. 5.1 in the layout we know it today was already in cinemas since 1979 thanks to 6-track mag strip 70mm when Apocalypse Now premiered. Also, it sounds awesome. - When doing traditional double-projector presentation, projectionists would often put some splicing tape on the edge of the film in the lead up to a reel change - the clacking sound the tape would make as it passed through the rollers / gate would serve as an audible warning that the reel was soon to end. - SDDS utilised ATRAC encoding - the same compression format Sony had invented for the MiniDisc! Also, whilst it was 8 channels in its premiere format (which added two more channels behind the screen - the same as the original Todd AO 70mm Format), SDDS also had a standard 5.1 mode. For many years prints with all 3 soundtrack formats like the trailer you have were very common. What was less common was studios opting to upmix to the full 8 channel format. The advantage of having those extra 2 screen channels is again being utilised by Dolby Atmos. - DTS didn't ever utilise higher capacity DVD Roms. However part of the original design of the system had allowed the timecode to also be used to trigger in-theatre effects. And from memory there was also provisions in the DTS bitstream itself to accomodate triggering other than the soundtrack. For this reason, DTS did get some limited use in special venue scenarios. It was also the only one of the 3 digital sound formats that had a 70mm version. Which was easy because the SMPTE timecode was just added to a 70mm print.
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  393. Thanks for the great video! European here, using moderately hard water in 6+ year old Siemens dishwasher that came with the apartment I bought (so it might as well be 10-15 years old). Two more tips that were not mentioned: 1. If the dishwasher has a salt based water softener, go check out if the dishwasher has a water hardness setting. My wife was ready to throw the dishwasher out the window as there was always a thin grease film left on the dishes, especially plastic ones. I was lucky to find the manual of a similar enough dishwasher and realized the thing was set to the softest setting! After setting it correctly (checked the water hardness both via city's water supplier site and with a free sample water hardness strip) and it's like we have a new dishwasher. Oh and the filter at the bottom is also went from a greasy mess to almost not needing cleaning. 1*. Avoid exaggerating with the hardness setting as the salt is corrosive and a too high setting will use it up incredibly fast. 2. Avoid putting narrow dishes (like tall soda glasses) at the corners of the racks!
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  394. Ahh, the presence of those amylase enzymes explains at least some of the need for additional detergent in hard water areas. Alpha and beta amylase are most effective in the low to mid 5 pH range, and in the 145F to 160F temperature range. So in an area with hard and alkaline water it would be necessary to have more enzyme than in an area with less alkaline water. Neat!
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  395. This is so frikking important. And it's also what horrifies the entire petroleum industry and all of their sycophants. Charging you car like you charge your phone.
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  396. @Technology Connections - Alec, this was an excellent video! You did a really great job of covering all the major points and addressing the common concerns regarding home electrification. And I say that as an architect who specializes in this topic and passive house design. Your argument for why 100 amp service can work was well thought out and reasoned. I can't wait for more in this series!
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  397. I just wanted to say that there are few channels I get this excited for new content. Thank you for being you.
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  398. Don't even get me started on how oversized ACs are, especially with modern efficient foamed and tight houses. Now everyone needs to get a dehu to combat the oversizing. That said, tight houses also need a dehu on shoulder months since they don't need to run anything for cooling (thus won't dehu on humid rainy shoulder month days), and I think it's code now to have fresh air as well whether with a dehu, ERV, HRV. So many contractors are still living as it was decades ago sadly.
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  399. I strongly agree with what you said in the ending bit about how technological progression should be done to solve problems. The dogma of progress for the sake of doing what's cool instead of doing what's practical is something that i've been frustrated by before, and i'm glad to know others feel the same way.
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  400. A docked Notebook has been my main setup for quite a while. Really convenient if you just want to have a single computer that you use mainly stationary but want to be able to take it with you and use on the go occasionally.
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  401. Hey, man, glad I could bring it to your attention!
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  402. Your last couple videos have convinced me to switch to a heat pump from my ancient boiler/baseboard heating system instead of replacing the boiler with a modern one. So far I'm loving the multi-zone mini-split heat pump system.
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  403. Why is it the only "Arguments' people have against this is insulting someone? This is like arguing against can openers or soda tabs with "Well, if they were a real man, they wouldn't need easier opening methods!"
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  404. I've been feeling this really intensely lately. Thank you for using your platform to address this!
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  405. I had one of these but it didn't flicker. It was flame shaped and was supposed to flicker, but it was perfectly stable. I guess the accidentally built it correctly!
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  406. TC is back! And honestly I feel like I’m with you on this. I’ve watched this happen, and it feels like we’re a bit quick going from “why, this LED lasts practically forever!“ to “we don’t need to consider replacing them“, I’ve seen it in car lighting and now it seems to move over into home lighting. It allows for some really neat designs you couldn’t have with bulbs, but it also creates more waste and makes it harder to fix stuff, which isn’t great. It’s a messy situation and I’m not sure what the best solution is, here.
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  407. What gets me is that a Kodak employee made the "first" digital camera and THEN Kodak went "nah, let's make Disc film!"
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  408. My first self-purchased camcorder recorded on these mini discs, on R, RW's and RAM. Was the first time I ever heard of DVD-RAM! And now I've learned they had full sized ones!
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  409. The easiest way to think about how gas discharge lights work is electrons of the atom re bumped up into a higher electron orbital. As they jump back down to their ground state they emit a photon of light at the wavelength directly proportional to the distance it jumped. The bluer the light the more energy the longer the jump. This is why you can't get gamma rays only up to Xrays using electrons there isn't a long enough jump for gamma rays. Also shorter paths have a limit and is why you don't see too far into the infra red. To go lower you need a wire where AC goes down: Hence a 1 meter antenna makes a wave length of 300MHz. The electron orbital acts as a nanometer length antenna.
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  410. About load-sharing: I once wired my A/C condenser and outdoor hot-tub heater to the same 40A circuit, with a simple 24-volt two-pole relay in the condenser housing that gave it priority. The rationale, aside from saving a long run of 8-gauge copper, was that if it was hot enough to need the A/C, you wouldn't mind if the hot tub was a bit cooler.
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  411. I can attest to a tiny 1500w heater being capable of heating a large room. in fact i have to turn it off after a couple hours as the room gets too hot.
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  412. Soooo.... yeah I'll be that guy for this one... Boosting Engagement! I have a Carrier Infinity heat pump system, and it's the exception to the rule. It doesn't use the old school 4/5 wire setup, it's a serial data bus, and is variable speed on both the fan and the compressor motor. So turning it all the way up to 90 does in fact speed up both the circulation fan and the heat output. The damn thing sounds like a hurricane when it gets up to full speed. But most of the time it runs at a low speed and low compressor output so you don't even hear it running. But the motors in the compressor and air handler are driven by real PWM! Of course, it also means I have to use only Carrier stuff, I can't go just buy a thermostat at Home Depot, I have to use the $300 one Carrier sold me. Great video as always!
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  413. I'm a young dude in my 20's, and frankly, I have no idea how my peers are ok with the lack of control we have with our technology. I don't like "black boxes", which is what I call any technology which I don't have even a passing understanding of, whether it be an algorithm for youtube videos, or the ABS brakes in my car. The only difference between those two, is that I can learn what makes the ABS brakes work. I can illuminate the black box, and then I will begin to trust it. Sure, I don't know exactly how the architecture of my PC's CPU is laid out, but I know enough about PC's to be able to both troubleshoot it if need be, and control what it does or doesn't do. I suppose the point I'm trying to get at, is that it's my firm belief that technology should be subservient to the user. It should not perform operations not called for, and too many things these days do just that, with no way for the user to peer in and control it. I don't like it when my phone tries to automatically restart or update without my permission. I don't like it when cars drive without driver input. I don't like it when phone apps start sharing information without my knowledge. I don't like it when the GPS tells me to take a different route. Perhaps I'm a contrarian, a hipster, a technophobe, whatever, but gosh darn it, our species has the most advanced brain known to us, and we're trying to use it as LITTLE as possible?! Outsource our thinking?! Return to monke?!
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  414. Absolutely fascinating, would have never known what lurked inside these old machines. Can't wait for Part 2!
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  415. 3:36 You don't smack a carriage return with your right hand. SMH
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  416. Hearing someone rip on the stern knocker brings me infinite joy as a pinball technician
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  417. Bloopers Alec: "You wrote this and proofread it, don't change it!" Also bloopers Alec: "Why did I write this?!"
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  418. I wonder if you digitally recorded audio on vinyl and recorded of 1 and 0 of an mp3. I wonder how long would the recording last per one side of a 33.3 and at what highest bitrate? Considering that you could tighten the groove margins considerably since only 2 states would be needed and 2 states isn't practical to pickup with coils so light would be better so you would get a laser to look at the grooves, black is impractical so better to use sliver and oooooh.
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  419. The only thing I would recommend is to wear your safety glasses!
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  420. Ut oh, looks like some tribbles got into the quadrotriticale.
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  421. Totally unrelated to the video topic, but my husband wanted to watch this video with me so he asked me if I wanted to watch 'the guy with the brown' and I knew what he meant 😂
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  422. I love my Carrier Infinity Variable Speed Heat Pump... tied to Home Assistant, it knows how much solar I am producing, what billing tier I am in with SDGE, the forecasted weather, and if there is a flex alert or not (request to conserve energy) and can do exactly what you are talking about! I live in the future!
    65
  423. I'd say rendering is like baking something (to borrow the oven analogy); you did the hard stuff, now just watch out for smoke
    64
  424. The electronic payment system seems like something the labs guys at RCA would've come up.
    64
  425. The issue with filtering variable frequencies is that the bandwidth of an L-C filter (the simplest kind, and what old radio sets used) is proportional to its resonant frequency. The AM broadcast band traditionally ran from 540 to 1600 kHz — that's about a factor of three. So the selectivity of a pre-superhet set varied by a factor of three: at the low end of the band, audio quality suffered because the high frequencies (which in AM are further from the center of the signal) got cut out. At the high end, selectivity suffered and the set would tend to pick up multiple stations at once. That was the main problem the superhet solved: the selectivity of the set no longer depends on the frequency being tuned. The fact that every superhet receiver is also a weak transmitter was (and probably still is) used by the British to detect unlicensed TV sets. (Yes,*receivers* are licensed in the UK; the license fees are how the BBC is funded.)
    63
  426. I never thought I would ever feel envy over a toaster. Never.
    62
  427. Have you tried watching the whole video?
    61
  428. You are put of your mind! Those devices are GORGEOUS. I love the thin segments. I love the slight overshoot of the vertical segments. Wow, I want one. I want a lot I also want to build your huge LED clock, on a rollable fabric
    61
  429. The fact that you can make the color brown sound interesting blows my mind
    60
  430. you're clearly correct about all your technical objections but also "jank" is my absolute favorite thing in any appliance or machine ever and i love them. what wonderful little freak bulbs
    60
  431. Originally found this channel through the video about American cars using the brake lights as turn signals, so it's nice to see a similar topic again
    59
  432. Nema 5-15 is a true demonstration of the inertia of convention. We're stuck with a sub par design because it's everywhere.
    58
  433. "I have a pair of almost-randomly-selected video cassette recorders in front of me." PuhLEEZE tell me that was an homage to season 1 of Citation Needed!
    58
  434. The "throw the knives at the wall" bit had me rolling.
    57
  435. What it must be like to be in your head 🤣
    57
  436. Sigh. Our central AC died last year and I would have loved to replace it with a heat pump but based on everything you've said it sounds like it probably won't be doable right now. The house is 132 years old and has exposed brick in a couple of rooms. In order to insulate it properly we'd probably have to renovate the entire thing. And the upfront cost is just... phew. Funny enough our neighbors got a heat pump last year, one of the Carrier mini splits, and all he had to say about it was "we overpaid". I'll have to really crunch the numbers and make sure, but dang, I'm disappointed. Not by you, just by reality, as usual - this is exactly the kind of info I needed right now and I thank you for all of your efforts here 💙
    57
  437. Sounds so pretentious
    54
  438. My husband (Spats Bear) and I have three of these :-) As well as one of the original shoulder-strap VCRs. Particularly fond of the ole Fisher-Price PXL-2000s, we have a couple of them (complete with the matching monitors.) Oh, and I must say we LOVE your channel. [edit] Oh and we also have a couple of the JVCs.
    53
  439. Sorry for another comment, just can't stop :) These two motors and solenoids are THE FIRST EVER USELESS BOX and what a magnificent box it is! One rotating arm opens switches while another one closes them one at a time.
    53
  440. Hot take: the profit motive drives oversizing. A 3 ton unit costs more than a 2 ton unit. So if they make 10% profit regardless, they make more on the larger units. We need to regulate and innovate and incentivize things better. It would be a data/privacy concern, but you could have it where contractors could submit the floorplan and relevant information for a load calc to some agency(EPA? Idk) and get a tax break if they show things were properly calculated. We also need to maintain/increase tax breaks on heat pumps and all modern inventions that innovate and improve efficiency. A limit on profit would go a long ways too. I’ve heard the phrase “feast or famine” to describe points of high and low business. Sometimes there’s too much work, sometimes not enough. But the pricing is kept high so they survive the downturns. And while that is hypothetically fine, many, MANY jack up their prices beyond reason because of this, as well as because of the tax credits. There needs to be more oversight to protect the consumer. And to improve the functioning of our infrastructure. We all know what happens when you cheap out and price gouge on infrastructure… well, homes and hvac certainly count in my book. All thoughts are welcome and I can’t wait to read them.
    52
  441. I have two of these, one manual and one electric. I absolutely love them, having been introduced to the concept when I worked in France for a few months back in 1996. ANYway: with both manual and electric, I have encountered certain cans that are very difficult to open with these tools. Common denominator: they have all been canned fish or shellfish (e.g. clams). But with a little extra effort, the wheel blade eventually pushes through and Bob's your uncle.
    52
  442. The only thing those lights remind me of every year is the fact that they flicker at gird frequency I can even see it on camera (30fps, what shutter speed did you use?). So annoying... I wish every LED light manufacturer, no matter what kind of light, would put a "FULL BRIDG ERECTIFIUH" on top of the circuit
    51
  443. I seear ive learned more about lights and switching than i ever imagined possible thanks to this channel.
    51
  444. The clapper not "ringing a bell" is such a subtle pun
    51
  445. 0:22 Ah i miss the Warner Snapper cases. I'm glad i have quite a few of them from before they switched to keep-cases at one point in 2006 or so. I think the last new Warner Snapper DVD release i ever bought was "Ghost Ship".
    50
  446. Pah! Having watched many tech YouTubers, I now refuse to believe it is possible to operate a channel without a RED 8k and and $25,000 Mac Pro! How are you meant to flex how rich you are otherwise??? That aside, I find your put downs of Linux outrageous, Alec – in fact I've seen many predictions that 2020 is the year of the Linux desktop, so I think you'll soon regret sticking with your obsolete Win*doze* computer when you could be switching to Linux with an extra time commitment of only a few hundred hours per month. Real missed opportunity! 🤔
    49
  447. I'm glad I'm not crazy when it comes to this topic! A friend of mine recently moved out to where I live (A suburb of Phoenix), and his apartment stays way, way cooler than my house despite them both being built within the last 4 years. The main difference I've noticed is every single outward facing window on his apartment has an awning. Awnings on homes out here, at least newer homes, is basically unheard of, but I really think they should be more common.
    48
  448. the walls form a "Cold Trap" (wiki article is pretty good) that preferentially collects the ice vs it getting into the vacuum pump's oil and damaging it.
    47
  449. I'll note that New York City already has a ton of infrastructure for district heating, mainly via the use of steam pipes.
    46
  450. So cool to see how these worked before digital computers! Looking forward to the second part.
    46
  451. For some strange reason the USA seems to lag Europe in Xmas lights. So the future looks like this. Many sets of LED lights are based entirely on blue chips with a layer of phosphor to create soft pastel reds, yellows and greens. This year, new sets have appeared with pink, purple, tangerine and turquoise LEDs. The white colour options are cold white, warm white or extra warm white (also called gold). The strings of flickering tungsten lights have been imitated as konstsmide firefly lights, where the golden white LEDs are alternately a static LED and a candle style flickering LED so the whole set shimmers randomly. Another version appeared this year (Premier fire-brights) which have a custom flickering LED that is much faster than the candle ones. I prefer the slower candle flicker. Bubble lamps never really took off in the UK. It's a bit more complicated than just boiling the liquid. The lamps have a slight vacuum pulled on them to make them boil at a lower temperature. If you scavenge one of the bubble tubes from a light you'll be able to make it boil at finger temperature by holding the base of the tube and flicking the other end downwards to aid starting.
    46
  452. Hey, I just want to say that I was also someone who thought our dishwasher just wasn’t very good and felt the need to hand wash my dishes because I couldn’t trust it to get everything off the way I like. That pre wash information was life saving for me. I can’t stand hand washing and now I only have to do it with special rarely used items instead of everything I use daily. Thanks!
    45
  453. Dangerous?! Edison told me DC was the safe one and it's Westinghouse's AC I should worry about. So I will stick with the Nixie tubes thank you very much.
    45
  454. 2:32 - did you have a bit of a tumble? ;)
    43
  455. I wish I could shove this comment in the face of anyone who ever said "Why do we need to learn this math in school, we'll never use it in the real world." THERE IS TONS OF MATH TO DO IN THE REAL WORLD.
    43
  456. If there are two outlets, why not just make the top one “upside-down” (ground pin at the top) and keep the other one “frowning face”? That way, you can get the benefits of the ground-pin-at-the-top outlet for one plug, and be able to use right-angle plugs in the other outlet. This might not be ideal for when you have two devices of the same type next to each other, but it’s still a plus. All the dual outlets in my flat (in Poland, so using the French standard with the ground pin sticking out of the outlet) do it this way, even though I’m pretty sure that having the ground pin at the top is the standard (all the single outlets have it there). This arrangement with inverted ground pins also lets me use two right-angle-plug devices in one outlet for more flexibility.
    42
  457. Thank you. This is spot on. I think your bit at the end about computing being a solved problem and the tech industry making “AI” because it needs to justify its own existence is spot on. Silicon Valley really hasn’t had a good idea in over a decade. We’ve had more flops than actual new developments: the Internet of Things, blockchain technology, NFTs, and the metaverse were all supposed to be revolutionary, and none of them were. The crypto collapse of 2022 and the utter lack of impact it had on the rest of the economy proved that despite all of the sky-high coin values, cryptocurrencies still haven’t really found a use case that actually matters to the economy. I think the tech industry is starting to worry that if they don’t get something new soon, the bubble will pop and their stock portfolios will lose most of their value. AI is basically their last chance to find another revolutionary tech breakthrough before they have to face the music.
    41
  458. Would putting your IR camera behind the Fresnel lens array produce anything interesting? Thanks for the video!
    40
  459. All those edge cases are all perfect examples of the “But Sometimes!” effect as demonstrated on this very channel! TC, I really can’t thank you enough for the “But sometimes!”, it’s a wonderful thing to keep in mind.
    40
  460. "...thor spot" kinda forced my lute.
    40
  461. This is a frustrating thing with special buttons on ovens and microwaves. Does that button do something special or is it just a preset for something you could do with the normal mode(s)? If the button does something that's impossible with the normal mode of operation, it might be quite handy. And in some cases, maybe useful for things other than it's intended purpose. (If you know what it *actually does*, and what else might benefit from that.) If it's just a basic preset... if it ends up working well, that's less things to set, but not important and not really a selling point for the device like they want me to think it is.
    39
  462. You complain a lot
    39
  463. 5:11 The nature of the camera's Lonely Rolling Shutter
    37
  464. In Germany foreign agents who think they have perfect accents are exposed by having them say “Schärfesteigernder Filmentwickler” three times fast
    37
  465. This was an amazing video! Your channel was one of the reasons I decided pursue an EMech Technician degree. I'm 1\2 way through my first semester, my 47th birthday is Sunday, and I was able to read the schematics you showed in the video. Best decision I've made in years. Looking forward to part 2!
    36
  466. Its like a sombrero, for your house
    35
  467. I love a good switch snap, it's intoxicating
    34
  468. This is why I install multi-zone mini split heat pumps. They have their problems but so many configuration options and potential for greater precision and efficiency. Thanks for putting the fun back in the fundamentals.
    33
  469. I'm moving to a new apartment in a new building next month. We will have a heat pump for heating. My current building is from 2010. We have remote heat from the local power plant. I almost never turn it on because the building insulation is good enough that even in winter the waste heat from humans and appliances is sufficient to replace the heat bleeding off the building. So yes, heating systems for modern homes are often vastly oversized. The days of uninsulated walls, windows and roofs are long gone.
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  470. Great content, as always. You made clear many of the points I've struggled to make when talking to EV skeptics. I recently found a way to explain how long charge duration is generally not an issue. When people cite that as a reason for not driving an EV, I ask them "if you had a gas pump in your garage, how often would you stop at a gas station?" You can just see the wheels spinning as they think about that. For the hard-core skeptics, I follow up with things like "my 'tank' is full every morning", "energy comes to me, I don't go to it", and "I don't stand at a pump when it's 20°F below zero". I don't bother with "electricity costs a fraction of the equivalent amount of gas" because math is hard.
    32
  471. Not owning or ever using one of these, I always wondered how inefficient these would be with the entire unit in one "box"... Thanks for proving it!!
    30
  472. Remember when they taught "Internet research" in schools? I don't remember what class this would've been under, but i remember in 9th or 10th grade we dedicated a part of the quarter to learn how to research topics on the Internet. This was probably 2003... Broadband internet was very much still a new thing.
    30
  473. Thanks for the shoutout
    30
  474. lol i appreciate that the bulk of this video is confirming that a single number is correct in three increasingly loony ways; the christmas lights were a great touch. but also great info about HVAC stuff, 10/10
    30
  475. "once the science was settled" AAAAAHHHHH! Boo! Science is never settled!
    30
  476. Thanks for posting this Alec. It's a bit of a wake-up call for me as I've been increasingly relying on chatbots to "Complete this sentence in a professional manner" or "Rewrite this so it's not as rambly". I've been offloading what I've learned in school to a rock we taught to think for us. I think I'll switch things up from now on. Thanks again for this, and you know it's serious when there's no patrons or bloopers. Respect.
    29
  477. I just wanted to say that your original dishwasher videos completely changed how i did dishes and i am now a cleaner person because of it! I never thought the dishwashers got them clean enough and id be too tired after a big dinner to do dishes so they would sit. Now that i know how to run a dishwasher, my dishes get cleaned every evening and put away every night. Thank you for these types of videos! They mean more than you know.
    29
  478. For the last couple years, we've been setup with Ameren Electric's Peak Time Savings on our Nest. They anticipate a hot day, declare a Rush Hour will happen that day using the Nest app, then they pre-cool the house in the morning and shut off the AC in the afternoon. I think we get a $25rebate every year. Its barely noticible when it happens, and you can override it.
    29
  479. Thanks a lot ! This was enlightening !!!
    28
  480. Excellent video! I love seeing more and more videos like this which remind me to keep thinking for myself.
    28
  481. Waiter: What can I get for you, sir? Me: I'll have the Buttery Cheese Plate, to start, and then a serving of Beef and Broccoli, with the Gross and Sticky Sauce.
    26
  482. As soon as you said your heating needs were just under six kW my first thought was "huh, you could probably do that with four space heaters and a few control circuits." To see that exact thing happen later was extremely satisfying.
    26
  483. https://www.scitepress.org/Papers/2017/62960/62960.pdf This might be the optical truck tracking you're thinking about.
    26
  484. IEEEEEEEEEEEEEEEEEEEeee
    26
  485. I think one way to elaborate on "You can tell its video because it looks like video." Dynamic range is a good test - and its something you still have to have an eye for, but video productions usually aren't as vibrant as stuff shot on film because the dynamic range they can capture is smaller. Instead of having perfectly saturated blue sky, it might look more overcast even when it wasn't. Especially true when we're sticking to the "up to the late 90s" era mentioned in the video. It certainly gets murkier with super high end large format digital cinema cameras from Arri/Red since their relatively huge pixels have increased dynamic range too, but for generic betacam SP video cameras vs actual 35 or even 16mm film, the dynamic range is a big tell.
    26
  486. I’ve got that timer with the lose-able blades! I found that since having multiple on or off blades in a row doesn’t affect anything, I’d store all of the off next to each other, and all of the on next to each other. Only an issue if you wanted the on/off cycle to be 15 mins. But this explains the hum from it! I figured it was related to the grid hz, but didn’t really register that there’s an entire motor in there!!!
    26
  487. i am literally ordering powder as we speak. i'm also in australia, so i can give you extra feedback on how stuff works downunder. as you would expect, our dishwashers drain the other way around for starters
    25
  488. I have never bought a brand new high end speaker. My last score was Klipsch KL-650's for R1500, About $100 at the time. And they're amazing! to take note they were about $1500 brand new. Before that was a pair of Boston VR-20's for about $50 I scored. And my amps are pre 1980's picked them up for next to nothing. JVC JA-S55 and a Akai cant remeber the model
    25
  489. Incidentally The Breadguides In Our Sunbeam is my favorite John Green novel.
    24
  490. Fun fact. Sears/silvertone never actually made any of their own stuff. That radio was most likely made by someone else 😀
    24
  491. Betamax didn't unlace the tape from the heads when fast-forward/rewind, meaning extra wear on the tape.
    23
  492. There's an important factor missing from the section about insulation: embodied carbon! If the goal of reducing energy consumption is to slow/reverse climate change, you need to be careful about what materials you use. There's a lot of closed cell spray foam B-roll and that's one of the worst offenders wrt embodied carbon. Most closed cell foams use blowing agents with extremely high GWP, creating a situation where it can take >20 years to hit the GWP break-even point, assuming that your electricity supply continues emitting CO2. The cleaner your grid is, the longer the payback period. If you're on a 100% clean grid, you'll never break even! All that to say: it's important to choose carbon-sequestering insulation products like packed cellulose and fiberboard instead of carbon-emitting insulation products like foams and mineral wool!
    23
  493. 27:29 Niche, except for all planes flying around on it, afaik.
    23
  494. Another potential benefit of DTS's audio-on-disc system: same film stock for any region with the CDs being localized to whatever language necessary.
    23
  495. The spinny things on top of a helicopter are not really "fans". They don't work by "pushing" air down, like these ceiling fans do. In fact, you can stand under a spinning helicopter rotor and you won't really feel any downdraft. (You will only start to see strong air currents farther away from the end of the rotor blades). Rotor blades are what's called an airfoil. Their shape is formed so that the air has to travel a farther distance over the top of the airfoil than at the bottom of the airfoil. When you look at an airfoil crosssection, you'll see a kind of 'bulge'. The fact that the air flowing over the top of the airfoil has to travel farther than the air at the bottom of the airfoil leeds to a drop in air pressure on the top of the airfoil (thanks, Bernoulli!), which then created an upwards force, which we call lift. On an airplane, lift is simply generated by the airplane having forward momentum. But on a helicopter, you essentially just spin the airfoils real fast. Boom, lift! And yes, airplane propellers also work with airfoils.
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  496. Since watching the first video, I've been buying the cheapest gel detergent that I can find. I fill the pre-wash and the main wash cups. I always use the normal cycle and my dishes are coming out perfectly clean and virtually spotless. I rarely soak anything (I have to soak milk glasses and smoothie glasses) and I definitely do not hand wash before putting them in the dishwasher.
    22
  497. The ductwork rant 😂 priceless
    22
  498. I hated my dishwasher for a long time. I was convinced that they just don't work, then I watched your previous videos, and all of the sudden my dishwasher worked perfectly. I even got to to clean oil up stuck on pizza dough containers perfectly, it was like magic. So thank you so much for your psa.
    22
  499. That rant about ducting warmed my Midwestern heart
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  500. Yes, Sony did indeed use an M-load (albeit a very wonky M) on some of their later Betamax systems. The ones I am aware of were the C20, C30 and C40 models. Remarkably slimline, and the C40 boasted linear stereo tracks, so clearly from the later end of Beta. The mechanism they used was much more compact than the standard Beta, and it loaded a lot quicker too. Worth checking out if you can find one as they are a real oddball.
    21
  501. The tip to "run the hot water on the sink first" idea really helped at my old place. The distance from the water heater to the dishwasher was significant, so it never got hot input.
    21
  502. as a future engineer. i will refer to my coworkers as “my fellow engineers”
    20
  503. It's a meta-format-war!
    20
  504. YouTube DEFINETELY needs to add Audio Descriptions for viewers who are legally blind or visually impaired. James Rath (a YouTuber who is legally blind) started a campaign a couple of years ago called #AudioDescribeYT. Everyone, please bring this to YouTube's attention as much as possible because I would love to see a difference made to make YouTube more accessible for the blind. Also, no offense to Alec but there are a couple of things in this video that annoy me; one is the "There's no place like 4K! There's no place like 4K!" part. While it is a clever line, it truly annoys me because I HATE The Wizard of Oz. In addition, people who are deaf or hard of hearing (I'm not one of them) much prefer the terms "D/deaf" and/or "hard of hearing" instead of "hearing impaired." Look at the subtitle options on Pixar Blu-rays and DVDs (as well as Wiggles DVDs--yes, the Wiggles) and you'll notice that they note the subtitles as "English for the Hearing Impaired." That should be changed to "English SDH" or "English for the Deaf & Hard of Hearing." I'm also teaching myself sign language (mainly ASL or American Sign Language, since I'm Canadian and there is no official CSL as far as I'm aware) so if I ever get a chance to communicate with a person who is deaf or hard of hearing, I'll be happy to talk--I mean sign, with them. The part of this long paragraph about subtitles isn't my opinion, btw, it's based on some things that I've heard from people who are deaf or hard of hearing in other YouTube videos. And Alec (if you're reading this), Please feel free to pin and love this comment just to bring it to everyone's attention so they can yell at YouTube in any way possible about this problem that is unfortunately still a thing on this site. I swear to God, I'm not just asking for you to pin and/or love this comment just because I made it on the same day that the video was posted and/or that I'm a big fan of your channel. However, it truly baffles me about how little YouTube cares about this. Look at iTunes and Netflix. They've already implemented Audio Description (or sometimes called DVS or Descriptive Video Service) features into their players, as well. So come on, guys. Let's get with the program. (And yes, I am a big fan of this channel and remember some of Alec's awesome catchphrases from one or more of this channel's previous videos). And I remember from a previous video that I would also LOVE to see a video going more into the follies of the DVD and Blu-ray discs, please. It would just be my dream. And, as always, thanks for watching. Sincerely, William
    20
  505. Ok but let's be serious Alec, THANK YOU FOR LETTING ME KNOW ABOUT < AND >. I was always so annoyed having to guess when to pause to catch 1 frame jokes in videos!
    20
  506. Not qulified but, Basicly that driver in that filiment style bulb. Is likely a capacitive dropper ( capacitor used like a resistor with out the heat) that limits the current then is rectified. And if your lucky is also filterd with a small cap. But liky you said not a big enofe one. The schmatic in the wiki is what most of theses style blubs use. Just replace the parts after r3 with a string of leds.https://en.wikipedia.org/wiki/Capacitive_power_supply The other option that is unfortnatly becoming popular is a small chip from china that switches leds on in series. So wheen the ac wave is at say 6v it switches 2 leds on thenat 50v it switches say 15 leds in series, till all the leds are in series when it reaches 120v. It flickers relly bad but its incredably small, and very effecent. Thers also classic ac to dc power supplies (like your laptop or phone charger) but there not very comon in bulbs due to size, they are more relaiable though. Theses guys make most of the chips you will see in led bulbs or there clones. http://www.bpsemi.com/
    19
  507. Early DVD drives were dual-laser as well (one for CD, one for DVD). I think Sony developed a single laser that could do either? It probably has something to do with variable focus but I don't know too much about it. I just remember reading stories in the 90s about drives coming out with a single laser that could do both CD and DVD.
    19
  508. Hi! I totally agree with your point(s). I live in Italy, in a rather cold northern area, and I was one of the first—if not the first among those I knew in 2017—to have a gas-free home. All my heating is done with a heat pump and—until a few months ago—with thermal solar panels. Interestingly, I also own a small IoT company, which has allowed me to gather a lot of data on how my heating system works and adjust it to meet actual needs! Unfortunately, many professionals either don’t know or don’t want to get into such detail, leading to many mistakes in installing these systems. If you’re interested in what I’ve discovered over the years, feel free to contact me privately! Thanks for the fantastic video, as always!
    19
  509. This is relevant to my interests.
    19
  510. I suggest that you take a look at this video by slow mo guys : https://www.youtube.com/watch?v=3BJU2drrtCM It show exactly how the electron beam is working on a old TV.
    19
  511. It is all about efficiency. As a single power station can produce a greater amount of energy with the same amount of fuel, it makes no sense to continue wasting fuel in millions of smaller less-efficient engines. This is before we even touch on the fact non-fossil fuel based power sources exist. These vehicles are over-coming the real limitations holding them back, such as more efficient engines and battery arrays, so the cost difference between the two is only going to increase. As for the fact electric vehicles are still uses other oil based products... irreverent. That petroleum products are present in both makes this argument a 'null point' at best, all you can do is prove they consume the same amount of petroleum. Not only that, but this is an argument your opponent can easily hijack to strengthen their own side. All it would take is removing a single line from the comparison, such as connecting the vehicle to a green power network and removing 'fuel' from the equation.... So I really wonder why 'point and laugh' at others willing to take advantage of this increased efficiency?
    19
  512. My wife bought a 16A 220 charger for her volt (with a nema 6-20 cord) a few years ago and even with only being 3.5KW thats been FINE to keep her car topped off here and there AND also charge my VW ID.4 which I got 6 months ago. Even with that surprisingly low 3.5KW power output - I only bother plugging it in once every few days and when its done I just pop the cord back in my wife's car. Sure, I can't charge from 0 to 100 in a single night's sleep, but i'm more commonly charging from 40 to 80 which it has no problem doing if its plugged in from when I get home from work to the next time I have to leave the house. I won't pay an electrician to come re-run higher gauge wire to be able to install a beefier plug, thats basically a waste at this point. What I will say is that 220V 16A is plenty, 110V 12A is NOT for a couple reasons. First off, its less than half as fast as the 220V charger we have, second off some of the power drawn is wasted on keeping all the electronics in the car on. Thats not a big deal when you have 3.5KW but a major problem when you've only got 1.3KW and the car "idles" at about a 400W draw. The charge rate ends up being more like 900W vs 3100W. Too slow.
    18
  513. 16:30 Let me help you with that mystery! It's easier to cut shapes and print on the vinyl while retaining the reflectivity of the object you are making. The ink favors the divots the hexagons make, and the reflective vinyl is very thick and stiff. the hexagons make it easier to both cut it, and wrap it around an object.
    17
  514. Right after watching your other videos on dishwashers, and their detergents, I followed your suggestions. Made a huge difference and been having clean dishes since.
    16
  515. I had no idea that there was controversy and contention regarding the utility of CFLs, but that's another reason why this channel is fascinating lol
    16
  516. I honestly love the flow of this video.
    16
  517. A computer can not find out, therefor a computer must never fuck around.
    16
  518. I bought my first EV, an Ioniq 5, about 4 months ago (Thanks in large part to your videos explaining it so clearly) My commute is 140 miles a day and the level 2 charger in my garage is more then enough to replace energy I use everyday.  Going EV is saving me about $350/Month when compared to my Hybrid that gets about 40mpg. My wife drives my old Hybrid during the week and the EV on the weekends. She drives so infrequently that she only has to fill up once every 2 months or so. EVs are very practical and once the prices and availability start to become competitive it will really start making a lot of sense for most families.
    14
  519. Welp. I thought I didn’t like my dishwasher. I watched this a couple days ago, and now, applying what I have learned, I like my dishwasher.
    14
  520. It does look like the Warm Glow bulbs are not California Title 20 compliant. I used to be able to get them here, but not anymore. It could also be why they are being discontinued. Edit: bingo, the warm glow r20 has a CRI of 80. California mandates a minimum CRI of 82.
    14
  521. I am SCREAMING at anyone who will listen, well, just anyone, that ALL NEW CONSTRCTION (retail, commercial, residential, industrial, etc) must have accommodations for EV charging. Space in the panel, conduit run (tubes for wires), lot space for BEV's, mounting posts if needed, and transmission lines all in place. It will be far easier to install and maintain than a digging holes and ripping walls to install after the build.
    13
  522. Technology Connections Another great vid. ;) I think the main reason for using the IR laser for playing CDs is because the digital EFM style decoding used for the PCM track on Laserdiscs is pretty much the same as is used on audio CDs. This let them re-use the same chipset and signal path for the CD playback, and then just kind of bolt-on the MPEG-2 stuff for the DVD decoding using the separate red laser. That's my best-guess, and kind of makes sense, since the EFM decoder used for the PCM track on Laserdiscs was essentially just a re-purposed CD audio decoder to begin with. I think it was also cheaper to use the IR laser for playing CDs as well. Using the red laser requires more accurate tracking and focussing AFAIK. On later players, they started integrating the LD + CD + DVD playback into more custom ASICs, which further reduced the costs and overall complexity. Also, the IR laser was already used in the Laserdisc + CD player combo players as well, so it possibly confirms the theory about the "bolt-on" DVD thing. (keeping the IR and red laser pickups separate meant that they could literally just add the DVD playback board with a direct connection to red laser on some earlier LD players. Less complex switching circuitry to mess with, and they then just had to switch the video and audio signals instead.)
    13
  523. 44:11 you could say that, through the magic of buying two of them, you were able to prepare one set of trays while waiting on the other.
    13
  524. 13:00 Jimmy Fontanez - Floaters?
    13
  525. It's probably because the tape moves at a constant speed. That means the spin rate of each spool will depend on how much tape is currently on the spool. More tape on the spool means a slower spin and less tape means a faster spin. Or, put another way, as the circumference of a circle increases, you need a progressively smaller fraction of the total circumference to make up the same length.
    13
  526. Don't be a fun sucker.
    13
  527. 16:30 “one of my favorite contactors” I doubt that phrase is spoken very often 😂
    13
  528. I've been driving EVs for years, our house has been multi-EV since 2019, and just bought my fifth EV that replaces our final ICE vehicle (yay electric pickups!) but even being heavily invested in EVs for years, this still contained good info. Connecting the Technologies even for people who already know, thanks for the great video!
    13
  529. I hope someone starts installing the outlets diagonally so a sequel video can be made here.
    12
  530. The turn signal video is the one that brought me to the channel forever ago! So happy to see another one about a similar topic!
    12
  531. 5:14 "Give him a left, you big lug!"
    12
  532. Yeah, I guess it "feels" kind of dirty to make the signal go through so many devices, but when you think about it, it's digitized on the first one (unless you try to digitize the sound on the second one later, but either way this applies) so you'll only ever degrade the signal once - and considering the quality of the de-interlace, upscale and color rendering, as well as factoring in the cheap cost, it definitely looks like the best bang for your buck right now, to the point where expecting better probably indeed is a fool's errand.
    12
  533. You see children takes off glasses Hello. In the old days...
    11
  534. Thanks! I hadn't even thought of this, given that my desktop was driving three 4k monitors, a couple more regular monitors, and storing a couple of TB of data. But when I looked at my laptop (XPS 9520), it had comparable specs. I added 2 TB of disk and now my primary day-to-day computer and primary mobile computer are one and the same. It's been working great for 2 weeks now.
    11
  535. what in the world am I supposed to do with this timbreine now....
    11
  536. Hey. My closing credits gag tagline actually fits the video topic for a change.
    11
  537. I live in a full electric house and I learned a lot from this series!
    10
  538. Thanks! Sorry I'm late with this, I talked about a Thanks! months ago. I found the Pinball series absolutely fascinating. To see what was possible with switches, relays and, a lot of wire. Appreciated you showing us how you traced it out on the schematics.
    10
  539. So lucky for you all here I just had a lecture on magnetism and still have my notes out (if you care to read it) - Within a bulk mass of magnet there are domains, areas with the same magnetic moment. - Magnetic moments derive from the atomic structure and is beyond the scope of this youtube comment. - Senseable temperature is actually the rate of the random motion of particles in space. - At the Curie temperature (Tc), the energy it takes to move the orientation of a domain is equal to the energy whithin that random motion. - Above Tc, there is enough energy for the domain orientations to be scrambled by random motion. - For a magnet, all the domains must point in the same direction. The interesting thing is that in order to realign the domains, a magnetic field must be present while it cools down. I suspect you would have picked up the presence of a second magnet (electromagnet?), so I suspect there is something more complex going on where the magnet doesn't completely scramble. I might have to ask my lecturer, though he probably won't know either. Some bonus facts: - Above Tc, the material acts like a paramagnet. - A paramagnet is basically what we would call something magnetic but not a permanent magnet. - Ferromagnetic materials have the magnetic moments (at a atomic level) pointing in parrallel and add together - Antiferromagnetic materials have the magnetic moments pointing antiparallel and so they cancel out. - What we call permanent magnets form when atoms switch between domains in a process called Magnetic Hysteresis.
    10
  540. For what it's worth, I took your advice from the first video and my dishes are a lot cleaner now. I have the hardest water, so even if I'm not washing the most soiled dishes possible, I will still add some detergent along with the little pack thing. It works wonders.
    9
  541. Unless my brain is malfunctioning again, debounce (via circuit or code) is dealing with switches which do not make/break cleanly. So the opposite of what you said there ;) Still, love the vid. Super simple topic, but one lots of folks never really think about. BTW: The most interesting contactor I've ever heard of (I actually saw it) was the switch for a research rail-gun at UT Austin. It was two big slabs of copper on heavy rails which were shoved together (with springs IIRC)... carried massive amounts of current at quite high voltage. The insane part was the mechanism to break contact though: It had a groove on the contact face of each copper plate with explosives (a variant of plastic explosive). The "off" button literally blew the contacts away from each other. Science is fun :)
    9
  542. You say that you'll know what it was like if you're over the age of 30, but there are a good number of late gen z people who had the same experience starting out. Im 25, and got on the internet when i was 7 in 2007. I used the internet by google searching, bookmarking individual websites about my interest, and then alternating between them and further searching. Wikipedia has been a massive part of my online life since 2007. It really wasnt until the very early 2010s that this started going out the window with social media and youtube. By then I was old enough to notice the change and resist it long enough to retain my internet research habits while also submitting almost entirely to the YouTube and Reddit algorithms for entertainment.
    9
  543. Instead of simplifying, you should have taken a page from 3blue1brown and delight us with all the math that goes with induction motors including back-EMF as they speed up. Another thing worth mentioning about all these motors is that they typically use the airflow they generate for their own cooling. It's yet another reason why a startup stall is extremely undesirable.
    9
  544. "Don't believe me?" I wanted to say "ask the dishes" so baad
    9
  545. These tips really helped on the last set of videos. to add make sure your drain line is installed correctly. it needs an uphill and downhill section to drain correctly. Ours was wrong and causing food particles to flow back into the dishwasher.
    9
  546. I am very happy that you put the dishwasher on the table.
    9
  547. I was not expecting the humanitarian aspect to the video thank you for that.
    8
  548. Here you are talking about a simple 120V receptacle and my parents’ house has a 240V dryer outlet (3 conductor) that was installed upside down. They have a zip tie holding the cord up so it won’t back out. Now that’s dangerous!
    8
  549. I agree with you, it's way easier to just see yellow and know that someone is going to turn than to have to wait and concentrate on the tailight for a bit and figure out if the car is turning, has the warning lights on, or is braking very frequently
    8
  550. I definitely agree with your "spicy" take. I don't understand why these charge stations aren't made to mimic the functionality of something so tried, true, and familiar to the userbase.
    8
  551. I've done this for a few years now and it's really a great solution! I bought a USB-C monitor, so the dock is built in. Then it's just a single cable to my laptop and that's it. Love it.
    8
  552. I use a pvr rocket I was having the same issue with split files, I formatted the USB stick to NTFS and that fixed it
    8
  553. There's another important distinction that I don't think was directly addressed that would have helped illustrate your point. In the close-up images of the phosphor dots, some of them are only half lit up, like they're cut in half, because the beam striking that area is not quite lining up to hit that spot straight-on usually because of the beam timing and the dot pitch.
    7
  554. "BUT SOMETIMES!"
    7
  555. In your "Chevy Bolt" video you said that one starts with a "full tank" every day and it was a real eye-opener when said like that.
    7
  556. Practical effect. I see what you did there.
    6
  557. Just as I was discussing information/mind diet with a friend yesterday (with a great source to Dr. K from HealthyGamerGG), your timing with this video is impeccable. Wholeheartedly agree about the increased need for intentionality in choices, exploration of nuance, and mindful context awareness. It's severely lacking, so much so that it's blending into IRL conversations amongst friends too. Thank you, for being self-aware in your works, desiring to increase curiosities!
    6
  558. Hey I think you forgot to include your end cards.
    6
  559. Wow, the tip on dosing is crazy! I've had to do a bunch of post washing because of that and not once did I think it was too much detergent because they all say "completely fill" as you mentioned. Thanks 'internet appliance guy'!
    6
  560. Wow, I'm surprised at how wrong you are here. No worries, lemme help you out. "Most" semi-modern gas fired high efficiency forced air heating systems are either multi-stage or infinitely variable. And by semi-modern I mean within the last 20 years. A multi-stage system is as it's name implies, it is not however "full-blast" as you have described it. That is without getting into the variable speed blowers which accompany all multi-stage or infinitely-variable systems. Thermostats also come in multi-stage or infinitely-variable flavors. My current Honeywell stat is capable of controlling up to 3 stages. Yes, on or off any one stage at a time but with varied levels of heat output depending on which stage is being called. In the video you said the blue wire does nothing. Well...... That looks to be your "C" terminal (common) and it does a whole lot more than nothing! Most modern smart thermostats will not function without the "C" terminal. You really need to do some more homework on this stuff before you definitely tell folks how their HVA/C system works. I've given you enough reason to do a lot more homework on this subject, but I'd suggest you take this video down to correct your mistakes. The rest of the world is far less kind then I.
    5
  561.  @TechnologyConnections  Perhaps killing HVAC at the breaker panel would be too aggressive (and it wouldn't know the temperature in your house anyways). It'd probably work better as a smart thermostat integration to modify the set point when the load from other circuits high. So essentially like a load-shedding message from your utility, but instead coming from the panel.
    5
  562. I switched to such an opener many years ago. It was a real revelation to discover this technology and how much better it is than the opener that cuts into the can.
    5
  563. I grew up in a home with an electric resistance “furnace”. Seems so silly compared with a heat pump.
    5
  564. It's nice to see people who actually think and use their brains for something good or at least useful for some people.
    5
  565. 4:33 I heard that, Alec. 🙂
    5
  566. The new PeopleMover system installed in 1993 running from the Capital to the Hart & Dirksen buildings was designed and installed by Transportation Group Inc., of Orlando, or TGI Inc.; and its parent company, Bombardier Inc. of Quebec. Most of the design was controlled by TGI Inc in Orlando. Testing of the cars, track, stations and controls were performed at Bombardier test facility in Kingston, Ont. TGI's connection to Disney I believe was the building of the replacement Monorail Transportation vehicles for Disney World. TGI designed and built the automated people mover system at TIA that runs between the main terminal and the long-term parking garage since 1991. There were several projects I was not familiar. In early 1994 TGI was closed and all projects were transferred to Kingston, Ont
    5
  567. my favorite part of the technology connections video is when he says 'it's technology connecting time' and then he makes a connection of technologies.
    5
  568. No need for the Tabs/Pods then. And that's why folk buy them. Convenience. If you're already "messing" around with powder of gel, it's easier to fill the compartment and toss a blob into the machine or on the inside of the door. Yeah, toss a little Vinegar in too occasionally if required. I happen to live in the NW of the UK, we have some of the best water on the planet I think. No hint of Calcium, metals or anything that builds up, and only ever varies slightly in pH from 6.8 to 7.1. When I think they may add a small dash of Bleach in the summer months, as that is usually when it goes below neutrality. But it also requires the individual has the realisation or thinks about it in the first place. Many people seem now to have lost or never developed that skill or talent.
    5
  569. Your videos are one of a kind. Keep up the amazing work bringing informative content to the public. Everyone would benifit from more creators with your ability to deep dive into specfic subjects ♥
    5
  570. As bonkers as this all is, it does feel imminently understandable, and present. There isn't a microprocessor where a bunch of inputs disappear to create complicated outcomes, you can see every part of it working. There's no black box. I really enjoy that. I feel like I could now design a simple little pinball cabinet using these fundamentals now, if I wanted to.
    4
  571. Really entertaining presentation of many of the daily items we take for granted! Truly awesome content :D
    4
  572. Fun fact for the Mandarin color words: Besides the "color of coffee" name for brown, that other word that you cited for brown (棕色 zōngsè) literally means "color of palm (trees)."
    4
  573. R32 difluoromethane?? laaaaame. 2,3,3,3-Tetrafluoropropene, HFO-1234yf ftw. 0 odp, 0 gwp.
    4
  574. Oh, haha, I’m sorry, I forgot—we’re drinking root beer now! Same kind of thing, different name. Well, that’s progress for you.
    4
  575. The quality of your videos keeps getting higher consistently! I feel that subscribing all these years ago was an investment and now it is paying off.
    4
  576. 0:53 "...and these folks can't see it."
    4
  577. dude! you blown my mind away! best machine of it times that combines electronics and mechanical parts. that's remind me of the abacus calculator. good old traditional pinball doesn't compare to those full fledged videogames. can't wait for the 2nd part!
    4
  578. Thanks!
    4
  579. Yes, that's what google says a pixel is, and it's an incomplete definition. They key point of what a pixel is has to do with being individually manipulated. As demonstrated with the shadow mask, the electron gun does not give a lick whether it actually falls on a phospher or not. That is a huge difference. I can turn on pixel 300,280 and give it an RGB intensity of 2A7033 on a digital display. It will happily do so. The best an CRT display can do is vary the intensity of it's beam on line 280, after a certain period of time past the h blank and hope the phosphors that get lit are visible through the mask. That's why old school consoles are in such lockstep with the crt's rate of refresh. The console knows what it put out the field previously, and some can know whats in the next field, but it could only guess what is sitting under the beam and being lit by use of registers that count what line the display is currently drawing and another counter that tracks to the hblank. From there it could "address" individual parts of the screen and know what should be displayed there. I say should because the console couldn't actually know what's there, it just knows what it is attempting to paint there. This is most telling in the atari where bits of the play field aren't displayed because the cpu had to take over to run the program code during the h blank, for a brief moment the tv had no information as to what to do with the electron gun and thus didn't fire until the display routine took over. In modern displays, I can look at the digital output and know the exact location and intensity of every dot on the screen. They are pixels, and can be directly manipulated.
    4
  580. I have one of these in my new house, and I didn't believe the electrician when he said there is no bulb I can change. Of course it's now flickering.
    3
  581. Do not forget one of the most important reasons back in the 80’s for using the pcm converters, was RECORDING ON LOCATION. Sony made the magnificient PCM F-1, that linked to the portable VCR Beta recorder (both running on batteries) was an excelent choice recording live music, sound fx etc.
    3
  582. "If you have a drain, this is no sweat..." I see you sir ;)
    3
  583. I've been driving an EV, VW ID.3, for 18 months now. I live in Finland, and I've charged it from the 1x230V schuko the whole time, summer and winter, using the 8 amp type 2 cable that came with the car. So just 8A x 230V, 2 kilowatts, basically because the internet says that you can't do it so I wanted to see if you can. And you absolutely can. At the dead of winter, at minus 25 degrees centigrade, the charging speed drops from 7 km/h to 5 km/h but that's it. At about negative 15 to 20 degrees C it still charges just like in the summertime. I've driven about 14 000 km per year.
    3
  584. You're not looking at the total energy expenditure, and are wrong about "more harmful greenhouse gasses". First, the furnace produces greenhouse gasses too. Second, energy source mix is relevant. Third, large units are more efficient. If you produce the required energy in a power plant it'll have lower emissions than if you burn something locally. Sure there are transfer losses, but not enough to negate the difference. Just my opinion as an engineer. I look at the chain, not the end point.
    3
  585. i never forget why i'm subbed to you, man. but this is a damn good reminder! :D this video just spoke to me in a way you can't imagine! i never consume vertical short form content like shorts, reels, i deleted tiktok like three years ago and never looked back, and i EXCLUSIVELY live inside my notification area inside youtube itself lol. i mean i scroll through the home feed sometimes, but that's like once a week maybe. again, thank you, keep being you!
    3
  586. This is one of your more nuttier videos.
    3
  587. No lie, that discovision track is sick.
    3
  588. Thank you for both correcting and clarifying some items I can tell you the first video changed how I do dishes forever, after years of rental nightmare washers the simple facts like "use prewash" and how much of an impact letting my water warm up allowed me to go from a dissatisfied pre-rinser to someone who can just throw whatever into the dishwasher and have it come out perfect Now I am also going to go back to using powder (I was on liquid because of the same issue you had) and going to be doing more cleaning of the washer itself!
    3
  589. Thank you so much for this video! I've never used the popcorn button before on my Samsung microwave and it works perfect for pop secret. Also used the sensor reheat (which samsung no longer makes you specify a dish) for some fish tacos and rice and it was awesome!
    3
  590.  @ccooper585  it's still in operation, waiting for YOU.
    3
  591. Thank you for the years of high-quality explaining (and snark). It's great to see that millions of us are appreciative of how people like you (and The Engineer Guy, and a dozen plus more) are masterfully scratching the same itch that "The Way Things Work" and similar material did decades ago.
    3
  592. I love when my very very rudimental knowledge of 中文 comes in handy
    3
  593. 0:08 Exactly no one thought that you would be exempt from that XD
    3
  594. Firefighter here. No matter what you take away from this video, please, for the love of god, get some smoke detectors or check yours. If the video convinces you to switch alarm types, give your old ones to someone who doesn't have any. Until you experience it first hand you have no idea how quickly your comfy home can become a 500 degree, 0 visibility hellscape filled with viscous smoke and dripping plastics.
    3
  595. I like how your subscription feed is filled with only your channel. Yes I understand that was for illustrative purposes, but amusing nonetheless. Long live the bookmarked subscriptions page! It's how I found this video.
    3
  596. What's the matter with this thing? What's all this churning and bubbling, you call that a radar screen?
    3
  597. Wow, you know your stuff. You could say you're a Pinball Wizard!
    3
  598. I'm surprised your research didn't turn up the real reason for the demise of half frame, because it has been discussed a lot: it did well in Japan, but flopped in North America, because in those days most people shot slides, which had to be mounted in cardboard, and Kodak who processed most of the slide film refused to supply cardboard mounts for half frame images because they wanted people shooting more film, not less. The meant getting back your slides with two images together in one mount, with the outside edges of each cut off by the mount. If it had been introduced years when prints dominated over slides, it might have stood a better chance.
    3
  599. I had a HVAC pro tell me that when they built our subdivision which had a range of house sizes and designs that they installed the same equipment in every house and they were all oversized.
    3
  600. Great followup video! I'm in full agreement with all of your points, definitely valid. My wife and I switched from Cascade packs to Cascade powder after your first video, and are happy to report a massive improvement. We have one of the blender (as opposed to filter) types of dishwashers, and used to have major issues with large food particles being stuck on the inside of most of our drinking glasses after a full wash. With powder in the pre-rinse compartment (and a little extra sprinkled on the door due to our hard water), the issue went away completely and has not returned. We've shared these findings with several friends who have reported similar. Thanks for showing the world that expensive packs don't mean better results 👍
    3
  601. Where have you been all my life ? 😉 love your channel! 😊
    2
  602. Thanks!
    2
  603. Well, I just want to say thanks. Your prior videos on this spurred me to look into and ultimately buy the first dishwasher anyone in my family has ever owned. With that machine, I almost always use the regular Cascade powder as well. I use the amount my machine calls for; not what is on the box. It goes in the prewash and main wash compartment. The machine virtually always works perfectly and a box of Cascade Complete lasts me like six months. It is insanely economical. I love it. LOVE it. And it's all your fault. Thank you Alec.
    2
  604. I have once again been attacked.
    2
  605. Lets hope everyone throwing their support behind one standard will improve the whole industry
    2
  606. Thank you for being the right kind of weird.
    2
  607.  @andykillsu  it just a matter of getting used to things. I use a wok on an electric cooker every now and then and it's fine. And how many people use a wok daily? We are talking about a very small part of the population here, not worth maintaining national infrastructure and logistics for honestly. These discussions always seem devolve into arguing about little edge cases that very few people actually care about and with lots of solutions for the few that do care about it.
    2
  608. In an alternate universe "MEH on, MEHEH off, the MEHEHAHer" is a thing.
    2
  609. :D defs one of my fav channels EVER . and defs some rewatches. thank you verry much sIR. youre videos are GR-EAT!!!!!
    2
  610. The cheap colorful-LED lights i have do indeed have removable plastic lenses. They're just snugly fitted into the green plastic holders. I don't have any white lights to try them on, though. But be aware, some brands of them are removable.
    2
  611. Oh, I don’t know. You must be thinking of some other band.
    2
  612. https://www.imdb.com/title/tt0103064/goofs?item=gf3850783 Done!
    2
  613. Seal beam 6
    2
  614. 14:24 Thank God the condenser bit is about the light source, I thought we would have to learn about latent heat and the refrigeration cycle again.
    2
  615. It was an absolute pleasure to hang out with you and Robert! Can't wait to see more about the Ioniq 5.
    2
  616. ♪ One little spark, of inspiration ♪ ♪ Is at the heart, of all creation. ♪ ♪ Right at the start, of everything that's new. ♪ ♪ One little spark, lights up for you. ♪
    2
  617. Thanks! I’ve always wondered how that worked. I love all your videos.❤❤
    2
  618. So if I’m understanding correctly, I have a scenario based question: Imagine a small kitchen operating with one of these. The output from the stove is enough that over the course of cooking a meal, it’s enough to raise the ambient air temperature +8 in whatever your favorite unit of temperature is. Does this mean that the duty cycle will change meaningfully over time and the stove settings would need to be changed to keep it at its desired power level?
    2
  619. The image of his face fading in was terrifying
    2
  620. that camera is FF-3 AF
    2
  621. I'm old enough to remember when ISO was ASA.
    2
  622. Be Kin Rewin
    2
  623. Contactors: part of a complete breakfast circuit.
    2
  624. I read the title and just sighed I guess he roped me into watching a video about the noise of a switch now
    2
  625. The Boss He wasn't saying that the environment is more important than lives. Or shrugging off the accidents. He was just saying we need to add heaters that only come on when temperatures drop so that those accidents are avoided without wasting money and electricity on days when there's no snow to melt. rather than taking steps backwards from technologies we didn't quite get right, we can improve them till we do get them right.
    2
  626. My house is close to 80 years old, it had no insulation. I renovated when I bought it and packed the walls with new slag wool insulation and now I turn off my AC when I leave for work and when I get back it's maybe 76 if it's 100+ outside.
    2
  627.  @TechnologyConnections  We should be pushing charge at work way more than we are today because of the duck curve. We can charge ~10% more vehicles with a given amount of solar if we do it during the middle of the work day instead of when people get home.
    2
  628. Thanks!
    1
  629. 0:21 Even though I have seen this patent decades ago I still find it so weird to see such futuristic-looking numerals in a 1910 paper.
    1
  630. Thanks
    1
  631. Wow - soooo in depth….love it! Great explanation, script & video were fantastic.
    1
  632. Wow, TC + Pinball? YES PLEASE ❤
    1
  633. Thanks!
    1
  634. ¡Gracias!
    1
  635. Love your channel. Thanks!
    1
  636. Super interesting and impressive engineering. Thanks for breaking it down!
    1
  637. Thanks!
    1
  638. Merci !
    1
  639. Thanks!
    1
  640. Thanks. Great content.
    1
  641. ¡Gracias!
    1
  642. Simple explanation like always
    1
  643. Absolutely brilliant video.
    1
  644. 14:28 I almost died laughing! 😂
    1
  645. At 6:42 the picture is not of a European type 2 connector, but a Tesla "DC type 2" supercharger connector which was used on Tesla Model S and X until they switched to CCS2. This special connector actually has a notch inside which make it impossible to fit in a type 2 socket, while the Tesla Model S can take both the official type 2 for AC and this modified type 2 for DC. The modified connector re-purposes the 4 pins of the 3P+N connection with 2 for the DC positive and 2 for the DC negative
    1
  646. A real slap in the face to No Effort November
    1
  647. Thanks for standing up for us! It's so hard to find skirts and dresses with pockets, and I refuse to buy anything that doesn't have pockets big enough for my phone.
    1
  648. This video will create the kind of lasting legacy in the world most people can only dream of. If we were ever in doubt about YouTube as a force for good in the world this proves otherwise. I had accepted I had a slammy fire door which whenever I forgot something hanging up just out of reach would slam shut before I could dash back and forth to grab it. No more - 5 minutes with a screwdriver and life is changed forever.
    1
  649. Thanks!
    1
  650. Thanks!
    1
  651. Hvala!
    1
  652. For your Pinball Quarter Fund
    1
  653. Thanks
    1
  654. Thanks
    1
  655. Thanks
    1
  656. I only discovered this channel a year or so ago but I've done a helluva lot of catching up since then. Based on my experience thus far, I would imagine that making this video was the closest you'll ever get to smoking crack. A truly extraordinary exploration of a truly extraordinary piece of engineering. I would LOVE to see the reaction to this video by someone who used to make these amazing machines. Come on internet, do your thing!
    1
  657. Thanks!
    1
  658. 6:25 the square hole! 😂
    1
  659. *Chromebooks also work brilliantly with usb c docks
    1
  660. Thanks! Consistently well written!!
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  661. You got me with the hangover movie bit. I just watched your analog hydrometer video, and I was thinking it'd be pretty awesome if you did an analog barometer video. (Search "weather stick" for the wiki, it's amazing.)
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  662. A very interesting video. Thank you!
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  663. Merci!
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  664. 👍
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  665. Thanks!
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  666. Thanks 🙏
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  667. You are one of a select few you YouTubers that will always have a job, because humans will forever need things explained. Explanation is your gift.
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  668. Thanks!
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  669. Danke!
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  670. Thanks for all the great content.
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  671. Thanks
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  672. Thanks! I was impressed by your original video and experimented. I found powder to be just as good as the pods (which I already hated). The gels were not as good, in my use-case. Unfortunately the store I usually order from (mobility issues prevent shopping in person) only offers pods and gels. Strange, since this is a store that prides itself on low prices. Anyway, I heartily agree with everything you say in this entertaining follow-up.
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  673. This video is topnotch!
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  674. Terrific video as always, just wanted to add a few insights which might be helpful. First off, I'd love to see you discussing telecines in a bit more detail, especially as that is something that was used for longer than people might expect: even into the late 80s/early 90s, the BBC was using their own film prints to show episodes of the original Star Trek and transmitting those live onto television. This also meant that those airings included the same censorship that was applied when first broadcast in the 60s. Of course, the problem with this is most apparent with the infamous screening of one episode where the film literally came apart in the projector at an edit point (the BBC would often remove the pre-title sequence and re-edit to after the show's title sequence). This telecine process also resulted in a number of films having to be presented with live pan-and-scanning on the part of the operators, which... yeah, you can imagine how badly that went, and you'd have two noses chatting in front of a wall. The comment about 16mm only needing to be done at 720p isn't strictly true: a lot of low-budget horror films were made in that format, and companies like Arrow have done incredible restorations at 4K and 2K resolutions, even if they obviously don't have quite the same level of detail as those shot on 35mm film. The thing that holds back shows made on film being restored in HD is that it is still an expensive process, which is only just now becoming cost-effective for second-run channels and streaming services hungry for HD - the main outlet for these was Blu-ray for many years, but people don't buy TV shows on Blu-ray, and that was why Next Generation was restored when others weren't - not enough people bought them. But more and more shows have remastered, largely from a company called Illuminate Hollywood, who have developed a partially-automated computer process that matches the original film negatives to their video-edited counterparts. They were the company that did remasters of shows like Baywatch, The X-Files, Pee-Wee's Playhouse, and more. But even so, it still requires human consideration - but sometimes not enough, as shows do have things like missing effects, particularly day-to-night filters. Buffy the Vampire Slayer is the worst example, full of careless mistakes and gaffs as part of the HD remaster including wrong takes, framing, and so forth. But even so, this is still very expensive to do, and has to be done on properties that would turn profit from such a thing. Sorry for the long comment, got a lot of info.
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  675. Thanks!
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  676. How The pump directs water to top and bottom: Granted I didn't read every one of the currently 11,819 comments but I can't believe you didn't actually do any research to figure out how the machine switches between the top and bottom wash arms. There's a small ball just past the impeller that directs the water either up or down. When the washer first starts its cycle, the ball is in a neutral position, the pressure of the wash water pushes that ball against the outlet that leads to the hose going to the top spray arm. its not a perfect seal so that tube does get some water pushed up, but not enough pressure to do any good. The motor will shut off for a split second, when it does that, the water rushes back down, forcing the ball to the outlet that runs the bottom spray arm. The pump is timed just right to activate while this ball is in that position and its pressure holds it there now keeping the lower arm turned off and allowing the water to flow to the top arm. By varying the off time of the pump, the machine can constantly switch back and forth between the upper and lower arms reducing the need for more powerful motors and less water. To run both arms at the same time would require considerably more water, more water pressure, a bigger pump and overall more energy and be less efficient and louder. Interesting video over all though.
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  677. Thanks
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  678. Thanks
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  679. Thank you for this and all the other wonderful videos you do! I suddenly have an urge to visit the pinball museum in Alameda California.
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  680. Your shirt reminds me of something... oh, nevermind. I must be thinking of some other band.
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  681. Came for the entertainingly fascinated info, stayed for the I don’t know what you’re talking about, you must be thinking of some other band.
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  682. But when using a tesla with the super plug that will currently charge CCS you have to use the tesla app... and hope the app works... (when not using a tesla device)
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  683. Thanks!
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  684. We should be able to upload our own recordings like "Hey buddy I'm backin up over here!" over and over
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  685. Thank you ! Tons of great information !
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  686. Thanks!
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  687. Oh, I don't know. You must be thinking of some other band.
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  688. Thanks!
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  689. Using EV charging stations for portable batteries is virtually not a thing despite blackouts. Why? Love the show.
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  690. Thanks for no AD reads.
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  691. Thanks!
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  692. Thanks!
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  693. Thanks!
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  694. 🔋
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  695. The HD version supports TOSLINK! Who says it's a dying standard?
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  696. Thanks for the great videos!
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  697. As a weird obsessive nerd on the staff of a job site with far too many door closers, I owe you my thanks. :face-blue-smiling:
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  698. i just watched a 20 minute video about brown
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  699. Thanks!
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  700. Why do they call it the of glove when you of in the cold food of out hot eat the food?
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  701. Thanks!
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  702. Thanks!
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  703. Thanks!
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  704. Thanks!
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  705. Thanks!
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  706. Thanks!
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  707. Jokes on you, I have gas powered lava lamps and game consoles. So I have a TON of work to do
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  708. It’s not Ethernet it’s Digiorno
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  709. Danke!
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  710. very cool man ❤❤❤😮😮😊😊😊
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  711. Holy crap. You just confirmed everything I suspected about every microwave I have ever used for popcorn. Until now it was only conjecture. I never suspected the microphone though! P.S. You should have talked about why each bag says "this side up"
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  712. I bought into the pod hype, but after your last video, I tried convincing my husband to do powder stuff. He wasn't buying it. But we got an 18in dishwasher around the time i saw your video, and the pods kept leaving residue. So he was finally willing to try the powder, and we are loving it. So thanks!
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  713. Thanks
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  714. I love when my boops have good sound quality as well
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  715. :face-red-heart-shape:Thanks!
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  716. Thanks!
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  717. I LOVE all of your videos! You are a gift!
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  718. Thanks!
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  719. The PBS joke was spot on Alec. The jazz at the end always reminded me of the old programs. I used to watch it all the time as a know-it-all kid, but stopped learning in my free time for a long while in an effort to "reinvent" myself. Your videos poke at the curious nerd in me and make me excited to know stuff. Watching a few of them totally kicked off my interest in researching everything and anything that I want to know the science behind, of course bolstered now by the power of the Internet. Maybe I'm getting a little touchy feely, but I just wanted to say thanks for making me feel smart again.
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  720. Thanks! Had been wishing you made this exact video.
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  721. Thanks!
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  722. "Once we set fire to it, it's gone now."
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  723. Thanks!
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  724. Thanks! A perfect plurality of pi-labial fricatives!
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  725. I don’t have Patreon, but love the content and want to support you.
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  726. Thanks!
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  727. This video gives me a lot of insight into how old scoreboards worked before they were computer-controlled. I bet they used the same kinds of stepper motors these pinball machines used and the circuits lit different groups of bulbs in the display of each digit based on the position of the stepper motor, and hitting the buttons to advance the ones and tens digits simply sent pulses to the stepper motors and the play clock would have to have something to send a pulse every second when the clock switch was on. I wish you'd get an old electromechanical scoreboard like a FairPlay FF-1S or similar, or an Electro-Mech Scorebrain model from the 60s or 70s and do this type of video on them.
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  728. Thank you! I feel a little less like a crank weirdo for my own personal way of interacting with the internet.
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  729. Jared why didn't you go to that concert with me on Monday????
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  730. I never known this toy exists. I am now obssed with it. I ordered 2 of them. One for me, one as a gift. I will never understand how it could flow under my radar, when I am so invested in reading about physics and little gadgets like that one. Many thanks for showing me this.
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  731. Ah, I have news for you! Next year, Ace Hardware will be selling "Celebration Classics". They're LEDs that look like the old incandescents! I just learned about them from a promotional video I watched! And, they come in mini form! I thought you might want to know.
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  732. Thanks!
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  733. Thanks!
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  734. I've had amazing results with alcohol inks (from Michaels / Joann) and the cheapest airbrush you can buy. Alcohol inks are naturally transparent (translucent?) dry extremely fast, have a billion colors, and apply great on transparent plastics. I use them to dye my Mega Man gems (instead of dying the resin directly) and just love it as a process. I have half a mind to paint a set and send you one, hahah.
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  735. Thanks!
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  736. Thanks!
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  737. Thanks! Awesome video. Toasters these days don't last very long. I'd love to have this toaster.
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  738. Thanks!
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  739. Thanks!
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  740. Oh, I don't know. You must be thinking of some other band.
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