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Charge from body heat

 Recharge your cell phone from the body heat in your pocket
  (+2)
(+2) 		  [vote for,
against]

I'm not to sure of the mechanical logistics behind this, but wouldn't there be some way to utalize the heat given off by the human body to recharge you cell phone while it's in your pants pocket (or any other warm place)???
—DorkRawk, Aug 04 2003

Peltier clothing http://www.halfbake.../Peltier_20clothing
"Flip it around and you can power your Walkman while you jog." Not well received. [phoenix, Oct 04 2004]

Aladdin Power http://www.dirtroad.com/aladdinpower.htm
Uses "elbow grease" instead of body heat. [krelnik, Oct 04 2004]

[link]






       //I'm not to sure of the mechanical logistics behind this//   

       You can say that again. How much heat do you think our bodies give off anyway, seeing as our skin is usually at something like 75 degrees F?
—snarfyguy, Aug 04 2003
   

       Perhaps you could invent an electric blanket powered by body heat
—DeathNinja, Aug 04 2003
   

       More sensible would be a mechanical recharger, like those watches that wind themselves based on wrist movements. You could have a cell phone harness on your ankle and have it charge itself while you walk.
—bungston, Aug 04 2003
   

       I don't think it's fair to entirely discredit this..   

       Remember; everyone thought that solar cells was a horrible idea because it took one the size of a car to power a very small fan   

       Just because technology isn't there currently doesn't mean it can't be. All we need to do is vastly increase the efficiency of thermal convertors (Which would be a good idea anyway.. everything generates heat these days as a byproduct, why not capitalize on that?)
—JackandJohn, Aug 04 2003
   

       Recharge the cellphone in the pocket and go sterile at the same time.
—krigre55, Dec 07 2007
   

       //(or any other warm place)???//
Perhaps a bulbous anal probe, with the other end sticking out and up, covered with cooling fins.
—ldischler, Dec 07 2007
   

       [idischler] Back in your box ! Now ! Back ! Back, I say !   

       This is by no means a silly idea. The Seebeck (or thermocouple) effect can generate electric current from a temperature differential, and modern semiconductor Seebeck devices are remarkably efficient. In fact I shall be posting my own Seebeck-based idea very shortly.
—8th of 7, Dec 07 2007
   
      
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