I’ve been reading a lot about carbon nanotubes lately. (Specifically, I’m reading The Space Elevator, which is fascinating despite the sketchy writing style.) There seems to be no end to great uses for them, including bulletproof T-shirt fabric. And to think, we didn’t even know they existed until a decade ago. Go nanotubes!
UPDATE: Deb noticed that I had the wrong link. It’s been corrected.