silver

If you're driving around the southwest and find yourself in the middle of nowhere, pay attention. That's because you never know when you might be near a place of historic significance. There's just such a place in the Arizona desert called Chloride, and here's how it got its name. And a little chemistry lesson (at no extra charge).
Besides making wigs, or perhaps some rather bizarre clothing and artwork, there aren't a lot of practical uses for discarded human hair. But that could change thanks to a team of Japanese and South Korean chemists.