Comments on: High School Girl Invents Flashlight Powered By Body Heat http://cleantechnica.com/2013/07/06/high-school-girl-invents-flashlight-powered-by-body-heat/ Clean Tech News & Views: Solar Energy News. Wind Energy News. EV News. & More. Sun, 28 Dec 2014 17:40:00 +0000 hourly 1 http://wordpress.org/?v=4.0.1 By: Bob_Wallace http://cleantechnica.com/2013/07/06/high-school-girl-invents-flashlight-powered-by-body-heat/#comment-169896 Sat, 06 Jul 2013 18:40:00 +0000 http://cleantechnica.com/?p=53686#comment-169896 Wouldn’t work with ambient temperatures between 93 and 103.

Adjust that for personal body heat. And you might have to turn the Peltiers around at 103 and up….

]]> By: bussdriver78 http://cleantechnica.com/2013/07/06/high-school-girl-invents-flashlight-powered-by-body-heat/#comment-169887 Sat, 06 Jul 2013 17:27:00 +0000 http://cleantechnica.com/?p=53686#comment-169887 Clever; but it won’t work after the handle warms up or in hot climates. In canada, great. The idea would be better when combined with a shaker light which has a coil and magnet in it’s hollow center. Of course the best thing would be to use a crystal set AM radio… but the FCC would fine you severely…

It would be more practical to make a heat sink for the ground and replace the solar lights with these things… since those solar lights do not work that well and their batteries are a problem… especially when they don’t last if you let them freeze (which is ok because people are constantly buying the things every few years – my current ones don’t expect you to change the batteries… and don’t say to move them in for winter. Super capacitors are still too expensive.)

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