In the startup zone at CES, known as Eureka Park, prototype devices were in no short supply. One we wish would hurry on to the market is a miniature, wearable thermoelectric generator. The company responsible, Perpetua Power, gave us a closer look at the dime-sized TEG and a couple prototype devices.
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.