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A comment on 15-year-old girl invents flashlight powered by the heat of your hand. Parent comment

Re:15-year-old girl invents flashlight powered by the heat o... by ht_th on Saturday June 29, 2013 @03:36PM (#5963518)
Those crank-powered flashlights make a lot of noise and induce cramps in the hand used to crank it.
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Re:15-year-old girl invents flashlight powered by the heat o... by iknight on Saturday June 29, 2013 @08:33PM (#5964238)
It seems to work well for me. My son loves his. Granted I don't use it as a necessity.
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