Not sure this is the right place for this but its kind of the same. I was watching the discovery channel on night and it was about body armor. The biggest drawback to body armor that works is its heavy and hard to move in' date=' well they have come up with a new armor that is very thin and light. It is made of a gel type material and is soft and flexible but when a sudden force is applied to it such as a bullet strike the soft gel like material becomes instantly hard as steel and as soon as the energy has dissipated it goes back to its soft gel like state.[/quote']
Very interesting idea. Found a couple sites about similar if not the same technology.