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"These portable power generating options are a dime a dozen now, but we thought you'd still want to know that Sanyo has invented a device that'll let you turn your health obsession into electricity to power your health obsession -- a vicious cycle if we've ever seen one. It's a pedometer that generates just enough energy (40 microwatts) to keep itself ticking when the swinging motion of its health-nut wearer's body causes tiny parts to move around. Sanyo hopes to use the technology for other low-power devices in the future. As for us, we'd rather remain utterly otiose and let our battery slaves do the work for us, though we can imagine something like this might, with some improvements, prove useful to those villagers who have to walk 12 miles to charge their cell phones. [Warning: read link requires subscription]"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.engadget.com/2008/11/10/sanyo-builds-prototype-pedometer-that-powers-itself-while-you-wa/>