Boron Carbide

While it might sound science fiction or comic book fodder, scientists have actually developed a kind of wearable protective cloth from T-shirts that contains the same ultra-strong material used to armor tanks. Modern high-impact military vehicles and bulletproof vests are reinforced with a substance called boron carbide. It's the third hardest material known to man at room temperature, with a hardness of 9.3 on the mohs scale, just a hair behind diamond's hardness of 10. It's hard to imagine how such a rigid material could be comfortable to wear, but scientists have recently developed the…