Doug explains how to build perhaps the world's most fashionable high-tech belt using only leather straps, a disposable camera and some elbow grease. Oh, and a belt, of course. Far more complex than it sounds—launch the video for in-depth instruction and proceed at your own risk.
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.