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Sweat Could Charge Cell Phones

Scientists are working on technology that will allow us to charge our phones with our sweat. They are developing small temporary tattoos, which function like batteries, with sensors that pull electrons from the lactic acid released in your sweat, which then produces a measurable electrical charge. http://www.self.com/flash/technology/2014/08/will-make-rethink-feelings-sweat/

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