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Would it be possible to create aerogel lighter than air by using helium instead of air?

April 26, 2017aerogel air create helium lighter possible

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Would it be possible to create aerogel lighter than air by using helium instead of air?

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Aerogel cannot be made less dense than air by filling it with helium. You might be able to make it less dense than the surrounding atmosphere by filling the aerogel with helium and then placing it in an atmosphere of radon or possibly xenon.