Are you ready to play everybody’s not-so-favorite guilt game: what was I doing at that age ? Ann Makosinski, a tenth grader from Victoria, British Columbia, has created a simple LED flashlight powered by body heat . So instead of having to recharge it or swap in a fresh pair of AAs every so often, you literally just need to hold it in your hand for it to start glowing. Read more…        

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A Fifteen-Year-Old Has Invented an Incredible New Kind of Flashlight