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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 schiffern on Saturday June 29, 2013 @05:40PM (#5963794)
Ah, good point. I hadn't considered that. It looks like you are correct! You might sandwich two Seebeck-Peltier devices and switch between them, though.

https://en.wikipedia.org/wiki/Thermoelectric_effect

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