Gallery: 15-Year-Old Develops Flashlight Powered by Body Heat, Wins Top...

 

From a sleeping bag that charges your gadgets to entire buildings warmed by body heat, scientists are harvesting the heat emitted by humans as a source of renewable energy. But the latest development in thermoelectric energy generation doesn’t come from a high-tech lab at MIT; it comes from Ann Makosinski, a 15-year-old Canadian girl who developed a flashlight that is powered by the heat from a human hand. With the aim of reducing the number of single-use batteries that are thrown in landfills, Makosinski developed the innovative flashlight, which can be developed cheaply and deployed to populations that can’t afford electricity to light their homes.

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