Girl, 15, Invents Flashlight Powered By Hand Heat

By: Josh Mabry
By: Josh Mabry

15-year-old Ann Makowski from Canada has invented a flashlight powered by the heat of a the human hand. She explains how it works, below. She shows off the flashlight around 1:50 in the video.

The Hollow (Thermoelectric) Flashlight - Google Science Fair

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