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I was watching this youtube video:

https://www.youtube.com/watch?v=3bIXUBXj070&feature=youtu.be

and they say that the material is 1/6'th the density of air. In the comments, particularly this one: "That's a lie it is NOT1/6 the density of air... If it were it would float away" by a user named Cello Man, we've been discussing that. I linked them to this:

If aerographite is lighter than air, why doesn't it float?

related question, but the user Muzik bike asks "If I were to soak it in helium, would it float?" I've scrounged around the internet looking to see if anyone has tried that, and came up blank.

I think it would float at least until the helium escaped, which would be really really cool! So has anyone tried it? And what do you think, would it float?

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  • How does one soak something in a gas? – Kyle Kanos Feb 09 '17 at 21:47
  • @KyleKanos how about; glue the sponge to the bottom of a beaker, invert that, take a canister of helium, discharge some of the helium such that it floats up into the beaker... – user273872 Feb 09 '17 at 22:04
  • Rather than glue it could just be some low force clamps that can easily be released and wouldn't damage the sponge. – user273872 Feb 09 '17 at 22:07

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