Monday, July 1, 2013
Teenager invents flashlight powered by the warmth of your hand
[ Sun, 30 Jun 2013 19:16:28 GMT ]
A 15-year-old girl has invented a flashlight that produces a usable amount of light just by using the heat from your hand.
[ Sun, 30 Jun 2013 19:16:28 GMT ]
A 15-year-old girl has invented a flashlight that produces a usable amount of light just by using the heat from your hand.
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