What's That on the Dandelion?

A team of scientists from California has created the lightest material in the world, which consists of 99.99 per cent air and is only a hundredth of the weight of styrofoam. The scientists poured a liquid mixture of several materials, including polymers and ceramics, into a microlattice and exposed it to ultraviolet light to harden it. The grid was then covered in an ultra thin film of nickel. The entire latticed structure consists of hollow tubes a thousand times thinner than a huma