University creates world's lightest material

Chinese scientists say they have developed the world's lightest material, which they expect to play an important role in tackling pollution.

With a density of just 0.16 milligrams per cubic centimeter, a sixth that of air, graphene aerogel - which is also known as carbon aerogel - has been developed by Professor Gao Chao from Zhejiang University in Hangzhou.

He said the most significant qualities of the new material are its ease of manufacture, and its strong oil-absorption. The material is derived from a gel, with the liquid component replaced by a gas. It appears in solid state with extremely low density.

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