Comments by "SeanBZA" (@SeanBZA) on "SmarterEveryDay" channel.

The lithium hydroxide scrubber though is worse, it can catch fire if exposed to sea water.
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Need old lead, no alloying additives like antimony and calcium, all added to make the lead a harder alloy. Old lead has a lot of silver in it, along with zinc, which makes for a soft alloy that will readily bond with cold welding.
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That is when you ask them for their bank account number, the PIN used to get money out of their bank card, and the login to the banking app on their phone.
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Not hated, but for sure you will find your sleep interrupted by each one every night.
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Lead you have is contaminated with Antimony and Cadmium, which makes it hard. You need to find old lead, like from an old roof, and melt it in a new clean crucible, then cast using that. Or smelt it from ore, and do it the old fashioned way.
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Only if it is too thick, the sail is designed to be able to surface through ice up to a few metres thick without damage, so they look for the weak spots.
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Don't forget the biggest problem is the CO2 that is exhaled. Only limited scrubbing capability, so you really do not want to have that compromised, because then you will be forced to dump the air overboard and release compressed air from a tank to dilute the CO2 concentration down, limiting your options for endurance.
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@kotori87gaming89 Activated charcoal filters, which remove the majority of noxious gases, though they do have a very limited capacity, and regeneration of them requires either a lot of heat to drive the adsorbed gas off, or a big supply of fresh ones. So they likely are reserved for emergency use, sealed up till needed. So yes the chef will never be making baked beans, cabbage or broccoli, or any food that can lead to gas being generated by the crew.
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@SyntheticFuture That old lead likely had signifigant amounts of silver and zinc in it as contaminant, which will enable fusion. Modern lead is likely contaminated with things like Antimony, Calcium and Cadmium, all there to make the lead slightly harder and thus more rigid, which is added to make it more suitable for the largest use of lead, in modern car batteries, which need a durable thin grid that will not degrade, so they can up capacity and lower the amount of lead not in active plate material. The silver and zinc are stripped out in production, as valuable by products, then the other materials are added. The lead they have likely is from recycled batteries, they need either old lead off a roof, at least a century old, or to go to a mine and get a few kilograms of ore, refine it and get a lead that matches 200 year old lead. Probably needing to have a higher silver content in it , along with a little copper, zinc and tin added as well, which are all things that are present in roughly refined lead. A few kilograms of Galena, plus a silver coin and a few zinc pennies, will probably make a nice soft alloy, that will both cast well, have a good finish, and also stick together on impact.
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@thecloneguyz No space left to fit those kinds of scrubbers, without taking something else out. Plus they will be degraded fast, like the candles, and need replacement, so the stored spares would be even more space that is not available. Breathable air, rather smelly, as opposed to not having any breathable air, but no smell, most would go for option 1.
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Scary in a small helicopter, but not so in a large transport one. Was sitting with frustrated pilots one day ( compass swing in the middle of the runway/swampland on a steamy hot and humid day) and they did a "test flight" when finished, which included them doing aerobatics. Interesting to be pulling only positive G even though I was sitting by the open side door with legs out, looking down at the sea and up at the sky. You do NOT want to pull negative G in a larger helicopter, it gets very noisy. Only ever did an autorotation test once, the next time I just carried out the sandbags to get up to rated load and strapped them in the back..... Under 30 seconds from altitude to ground level, and darn near to basement level as well.
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Also likely to have subtle errors introduced into it, like originally introduced into printed maps as a kind of secret way to prove copying. Might have distorted scales, distorted locations and even things totally wrong in location. That also appears on Google earth as well, for certain locations around the planet, they often either do not show, or are totally wrong deliberately.
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@stochasticsignal1951 Really easy, as the whale can detect pressure over it's entire body, and also can detect the volume of it's lungs as well, so the information of depth, pressure, temperature and salinity is all part of it's sensory inputs.
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@doughudgens9275 No, they are depending on the company that originally said they could do it cheaper. Changing suppliers is hard, so they will stay with that company, despite changes in ownership, name and location, just so long as they supply to the original or amended spec (and those change sheet lists can be a ton or more of paper), and the price really does not factor into it any more. Not like there are many companies in the field, all of them are probably at the end owned by one of the large Defence Conglomerates by now, what with a half century of mergers, acquisitions and buyouts that have been done.
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@Andurian So you are practising preemptive warfare on your bunkmates..... Still would not like living there, think of how you do your laundry, not like you can send it out to be done, plus I doubt there is much of a laundry on board. Though I guess there must be a washing machine of some sort, as there are overalls that will need regular cleaning, and I did not see any really greasy uniforms, plus I guess you are limited in the volume you can bring aboard.
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@phillyphakename1255 Glues have been around for as long as the humasn race has used tools, probably first used when the first neolithic hunter wanted to hold his knapped spear head in the shaft he cut, and found that pine sap was the perfect thing to hold it there while he created the first composite materials, in using grass and sinews to bind the joint, and more resin to make the composite act unlike it's component parts.
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Those offcuts from making the beam straight could also have a use as some veneer to finish the sides of the fireplace uprights, giving it a look that says it was made 150 years ago. Would need an insert that is similar age though to match in there.
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Film because you have to remember context for every image. With only a limited amount of storage you have to remember the scene, in order to see the best time to get the single frame. Not like digital where you just have a stream and no context at all.
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How about using clear casting silicone instead, and, after suspending the drop in it and before it has finished curing, use a syringe with a long needle to inject in some columns of coloured silicone to act like shock wavefront indicators. That way you can let the silicone cure for 24 hours, then pop it safely, and still get the strings of colour to show the passage of the shock waves, like the rocket trails in nuclear blasts do, just in a very much more confined volume.
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I would also expect the worms to pick up meteoric iron from your roof, washed down the gutter with the rain, and then into the ground right by the storm water outlet.
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Impact requires a very accurate hit, but for disabling an aircraft just merely blowing up near is good enough, and you ensure with a large shrapnel field expanding out in a cone that you will very likely impact the aircraft, taking important parts out in the process. If you blow up as you are closing, so the cone expanding will cover the aircraft, you are a lot more effective, and those IR sensors are passive, looking for a large temperature change against the background of sky, which means there is an airframe close by, and thus on target.
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@Insertnamesz They were all definitely learned from death, injury or lots of blood. The original nuclear designers in the USA were very much aiming for the submarine to be the safest place around, and also to handle almost any emergency as well.
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@iveharzing The water is not always cold where they operate, in the Gulf it can easily be above 40C at the surface, and a good way underneath as well, which will make thermal management somewhat harder to keep the crew and operational areas at an optimal temperature. So you have to handle both a very large heat input load, though of course so long as the reactor is operating low grade thermal waste heat is essentially free for colder environments. But yes in general heating is easier to do, as the massive area of the hull is a near infinite heatsink. Condensation though will be an ever present problem, thus you have dehumidifiers, so all that human generated moisture can be pulled out of the air.
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Yes the basic unit is simple and basic, but then you start to add on all the other things that are there to increase the control range and also reduce the amount of wasted fuel that is there in droplets too big to fully burn at high RPM, and thus continue to burn in the exhaust. Things like the jets and air tubes, that provide better atomisation, and thus increased efficiency, along with things like variable jets that come into play at different flow ranges. Next should be a nice transparent model of a SU carburettor, to show how the diaphragm and the variable needle act to provide a fuel flow proportional to the demand, and how it changes with RPM.
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Closest ones are M8x1.0 for the chair I am sitting on, along with M8x 1.25 for the same chair. The table itself though has 1/8 BSW threads on the handles, and also has 3/8 BSW bolts holding it together.
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