Automakers are being pinched to increase safety and improve fuel efficiency, but those two goals often work against each other. That could change thanks to a material that is 99.99-percent air.
Ward's Automotive reports that the California Institute of Technology, HRL Laboratories and the University of California-Irvine have combined to develop a micro-lattice material that is said to be 100 times lighter than Styrofoam and strong like steel. We'd call this material paper-thin, but the truth is even more impressive: the material is comprised of tiny woven tubes that are 1,000 times thinner than a human hair...

Although this comes across as more of an advert for HRL, and some of the strength claims are suspicious, that is, a material's strength is best measured in tension and not in compression, the concept is still very exciting and the potential applications are huge ...