Lightest Metal Ever Is 99.9 Percent Air
by Edd Gent, Live Science Contributor | December 03, 2015 – How do you build the world’s lightest metal? Make it mainly from air, according to scientists. The material, known as a “microlattice,” was developed by scientists at HRL Laboratories in Malibu, California, which is co-owned by Boeing and General Motors. The new microlattice is made …