Aerogel Frozen Smoke

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