The military is betting millions that technology can turn soldiers into superhumans
The legs of an aluminum skeleton hang from Homayoon Kazerooni's backpack, its feet bolted to his boots. The lanky metal framework is part of an experimental robot, powered by a chain saw engine, that rides piggyback on Kazerooni, a mechanical engineering professor at the University of California, Berkeley. He's trying to walk with the contraption, which weighs as much as a grown man. As long as the engine is on, the robot walks with him, and he doesn't even feel the extra weight.