The tetrapods of the zinc oxide form an ideal basis for the robust material Aerographite. (Credit: TUHH)
A network of porous carbon tubes that is three-dimensionally interwoven at nano and micro level -- this is the lightest material in the world. It weights only 0.2 milligrams per cubic centimetre, and is therefore 75 times lighter than Styrofoam, but it is very strong nevertheless.
