War spurs innovation, and U.S. soldiers are seeing a lot of it. How well is the new equipment performing in Iraq?
ble=yes,status=yes')" target="popup1">Launch the Slideshow
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.