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The Balloons of Ancient Egypt (lemmy.world)

submitted 2 months ago by FlyingSquid@lemmy.world to c/insanepeoplefacebook@lemmy.world

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[-] ThisIsNotHim@sopuli.xyz 3 points 2 months ago

Not just air-tight, lighter-than-air-tight. I'm not sure if it's true for the whole set of lighter-than-air gasses, but helium is infamously difficult to keep from leaking, even with modern technology.

Good at making gasses behave is a weird choice for ancient technologies we lost.

[-] Tar_alcaran@sh.itjust.works 2 points 2 months ago

Hydrogen is even worse. It basically moves through solid steel cylinders.

this post was submitted on 16 Aug 2024

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