Here's another new use for graphene (that will probably never happen): stopping bullets. University of Massachusetts-Amhers researchers have found that everybody's favorite potential wonder-material vastly outperforms steel and even kevlar armor. Testing the ultra-lightweight, 1-atom thick carbon sheets has proved tricky in the past, as they disintegrated on contact with regular bullets. So, the team used laser pulses to fire micron-sized glass bullets into the sheets at around 6,700 mph, about a third the speed of an M16 bullet (see below). Sheets from 30 to 300 layers thick absorbed the impacts much better than the other materials by deforming into a cone shape, then cracking.