Student science project: Flashlight powered by hand heat(mnarc.org)
mnarc.org
Student science project: Flashlight powered by hand heat
http://mnarc.org/news/2014/02/a-practical-gift-from-a-creative-girl/
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http://mnarc.org/news/2014/02/a-practical-gift-from-a-creative-girl/
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