Those crank-powered flashlights make a lot of noise and induce cramps in the han... | Hacker News

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		ht_th on June 29, 2013 \| parent \| context \| favorite \| on: 15-year-old girl invents flashlight powered by the... Those crank-powered flashlights make a lot of noise and induce cramps in the hand used to crank it.

iknight on June 30, 2013 [–]

It seems to work well for me. My son loves his. Granted I don't use it as a necessity.

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