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Q&A Navigating a sea of sulfur hexafluoride

Sulfur hexafluoride is pretty awesome. It is a gas six times denser than regular air, and thus you can actually make tinfoil "boats" float on it. It also makes your voice deep when you breathe it i...

3 answers  ·  posted 4y ago by KeizerHarm‭  ·  last activity 4y ago by KeizerHarm‭

Question flight light gas vehicles