Aerogel, also know as frozen smoke, is the
world’s lowest density solid, clocking in at
96% air. If you hold a small piece in your
hand, it’s practically impossible to either
see or feel, but if you poke it, it’s like
styrofoam. It supports up to 4,000 times
its own weight and can withstand a direct
blast from two pounds of dynamite. It’s
also the best insulator in existence. —
Image result for aerogel

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