Comments by "" (@EbenBransome) on "Ziroth" channel.

  1. When the Germans and the Allies tried liquid oxygen to increase aircraft engine power in WW2, it had to be dispensed to the aircraft on the runway because it evaporated so fast. To keep liquid air liquid you would need an awful lot of insulation - and an electric refrigerator to deal with the ineviable heat loss.
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  2. In the past places like explosive plants used steam engines which had hot water tanks but no boiler. Water was fed in at high temperature and pressure, and then as the valves were opened it produced steam which powered the locomotive with no flames or sparks. As I child I saw them in action at the local gas works. This is actually much higher power density than compressed air, but they required frequent recharging (like every half hour).
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  3.  @hamzaterzi8801  It doesn't. Carbon fibre is stronger under tension than compression in the usual composites. It is certainly not stronger under compression as you think. Toyota Mirais have been driving around for years with zero tank ruptures. And the failure mode of a correctly designed tank does not cause instant explosion.
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  4.  @hamzaterzi8801  "and forcedly deactivated its temperature-activated pressure relief device" I can read. As for the Ukrainians, they did not build a "hydrogen bomb". They removed parts from a wrecked Mirai including a fuel tank and used it to make an IED. The account is very dubious because they say they removed the fuel cell, which weighed 200kg. The fuel cell is not explosive. The account is rather garbled. I know how somebody could make an IED from full Mirai tanks, having myself worked with hydrogen, but I'm certainly not going to discuss it here. And it wouldn't work in-car.
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  5.  @hamzaterzi8801  I'm afraid it is your English that is missing. They removed the device that causes the tank to leak safely if heated. It is not just a temperature sensor. Without removing it the tank would have vented, not exploded. Although the combustion of hydrogen with air would produce total energy comparable to 150kg of TNT, it wouldn't actually work like that in practice. I'm sorry but you just don't understand this stuff. I do, but for obvious reasons I'm not explaining any more.
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  6. @hamzaterzi8801  In fact I don't think hydrogen cars will work.
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  7. China is making them for a lot less than $15k.
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