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It's right there in the article: it mentions welding of aluminum foil seals - for helium. I have also worked with high vacuum in lab exercises. There's a leak
by ahartmetz 2y ago
It's right there in the article: it mentions welding of aluminum foil seals - for helium.
I have also worked with high vacuum in lab exercises. There's a leak finder apparatus using helium because helium creeps through the smallest leaks - but they have to be leaks! Hydrogen just diffuses through anyway, though not quickly through thick metal (I have that from Wikipedia).
- ejdhshsuwisjsh 2y agoI have to read up on this. I have seen a YT on someone doing this in a lab env but I always assumed that you can't contain it indefinitely
- Wowfunhappy 2y ago...so, uh, any idea why balloons suck? I assume it would be way more expensive but if it lasted for decades or more...