Prototype yoyo-powered mp3 player
With the prototype ReGEN: Yo Yo Powered MP3 Player (part of the Pop Sci and Core77 challenge to create a human-powered device), when you run out of juice, you just walk the dog a dozen times (so to speak) and it charges back up for another hour. Since the headphones are wireless, you can listen comfortably while flicking up a new charge. The LCDs will probably take a little sorting out (especially to make them damage-proof; who has used a yoyo and not dropped it?) from an engineering perspective, but the basic idea is solid as Undercover Brother. [GT]
ReGEN: Yo Yo Powered MP3 Player [via EcoGeek]
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