Temporary battery tattoo turns human sweat into electricity
San Francisco (UPI) Aug 13, 2013 - Scientists continue to unveil impressive innovations at the American Chemical Society's annual conference, currently being held in San Francisco. The latest is a removable tattoo that doubles as a miniature battery - turning human sweat into storable electricity. The device is meant to be worn during a trip to the gym. It can monitor a person's progress during exercise routines while s ... more
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