WEZA Foot-Powered Portable Energy Source
What’s a more renewable form of energy than human energy? We’ve seen it before with the human-powered gyms in Hong Kong, and here’s a portable energy source that’s powered by the spring in your step. We just discovered this amazingly useful gadget at CES, and can’t wait to get our hands on one. The Weza Portable Energy Source from Freeplay can produce enough power from a few footpumps to jump-start a boat or automobile battery and power a laptop, light or a variety of other electronics. If you were stuck out in the middle of nowhere, you could even use to charge your cellphone!