On the list of devices that can generate power, I have not yet seen the yo yo. But why not, it's basically just a rotor, all you need is some electromagnetic coils and a permanent magnet and you've got a portable power generator. Then, if you can fit in some firmware, a flash drive, a circular lithium ion battery and wireless broadcaster, you've got the most awesome, longest-lasting, carbon-neutral mp3 player in the world. And that's exactly the inspiration that drove Chris Aimone and Tomek Bartczak to design this concept for a wireless yoyo powered personal music player.
It's a while off from production, especially the display technology which seems to be some kind of transparent LCD, it's a darned good idea and recently took home the Pop Sci and Core77 award for best human-powered design.
written by Flint, February 28, 2008
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