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

  1. 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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  2. @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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  3. 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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  4. 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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  5. 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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  6.  @TechnologyConnections  Yeah, but you exploded TWO neon bulbs in your video, and Clive didn't. LOL
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  7. imagine a comeback so savage that it distills coal
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  8. 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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  9. 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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  10. 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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  11. 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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  12. 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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  13. 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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  14. I"m so so annoyed that the 5 in Nixie tubes is just an inverted 2
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  15. 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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  16. Great video. Thanks for making this one.
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  17. You're awesome and deserve more subscribers!
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  18. 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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  19. 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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  20. 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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  21. The radiometer, the flood light, and the window is my favorite C.S. Lewis fanfic.
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  22. 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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  23. 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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  24. 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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  25. 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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  26. Two notes make a chord!? You'll surely anger the music theory gods with that one..
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  27. 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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  28. "Long Life" flashers using 13V rated electrolytic capacitors on a 13,8V+ circuit, very good.
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  29. 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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  30. This message brought to you by Too Many Small Kitchen Appliances
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  31. When you said "our old pal," my mind went right to Thomas Midgley Jr.
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  32. 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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  33.  @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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  34. 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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  35. 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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  36. 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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  37. 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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  38. 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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  39. Dude, you make the most mundane stuff just awesome. I think I love you..... thanks!
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  40. 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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  41. 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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  42. 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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  43. 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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  44. 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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  45. 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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  46. @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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  47. 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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  48. 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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  49. 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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  50. 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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