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0 pointsbloopernova2y ago0 comments

Is it viable to use vacuum instead of helium?

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Wouldn't you need something with some amount of pressure to stop the "shell" you plan to float from collapsing?

What if we use hydrogen, which is halfway between helium and vacuum?

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Wouldn't you need something with some amount of pressure to stop the "shell" you plan to float from collapsing?

What if we use hydrogen, which is halfway between helium and vacuum?

j / k navigate · click thread line to collapse