Aerogel — that mixture of air and silica — is one of those materials that seems like a miracle. It is almost not there since the material is 99% air. [NileRed] wanted to make his own and he ...

If paying for something that is 99 per cent air doesn't sound like a good deal, then this bag might not be for you. French designer Coperni has made a bag out of NASA's silica aerogel nano-material.