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We've seen plenty spinning, twirling, and wind-up gadgets from Sony and others, but nothing quite like this battery concept designed by Song Teaho and Hyejin Lee. While there's still a bit of work to be done with the actual \"working\" part, the concept is to simply let you twirl your cellphone batte

4 years ago 0 Comments
January 10, 2010 at 5:35AM