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The Kid Should See This

Aluminum foil boat floating on a sulfur hexafluoride sea

It’s not magic. It’s science! Sulfur hexafluoride (SF6) is a colorless, odorless gas that is more dense than air at 6.12 g/L (at sea level). This density is why you can pour it into a glass container and float a light-weight aluminum “boat” on its gas “sea.” Watch this demonstration at the Physikshow of the University of Bonn.

Check out related sulfur and gas videos in the archives.

via Quora.

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