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(Fox News)   Resistance is futile, you will be assimilated into the portable air-conditioned collective   ( ) divider line 4
    More: Cool, MIT, thermoelectric cooling, air conditionings, lithium batteries, potential energy, electrical conductor, body temperatures, effective method  
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7703 clicks; posted to Main » on 05 Nov 2013 at 9:09 AM (2 years ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»

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2013-11-05 12:23:33 PM  
1 vote:
Why overthink it?
Why not just buy a fan and a 1.5v battery.

Cripes.. I was in 6th grade in a middle school that had no AC.   On a hot day I just
harvested parts from a Capsella building set and made myself a personal fan.

lets not do that.. lets use peltiers !
2013-11-05 10:21:55 AM  
1 vote:

Elfich: The Peltier effect is real. The idea is to use electrical power to transmit heat from one side of an object to other side of the object. The problem is that Peltier cooling is horribly inefficient compared to standard air conditioning. Normally Peltier cooling is restricted to specialized applications where the conditions do not allow for standard cooling techniques.
Peltier cooling for humans has been tried before. I think there were some prototypes built into chairs at one point (the back of the chair got hot).
Until someone gets the efficiency up it will remain a specialty application.

Of course it's real, just look at any wine cooler out there.

The problem here is that the headline is misleading. This wouldn't do much to actually cool you, but would make you feel cooler. Doesn't seem practical at all though.
2013-11-05 09:38:13 AM  
1 vote:
It's not that novel and nothing will come of it.

/ chemical engineer
2013-11-05 09:01:55 AM  
1 vote:
Somebody was really bored when they were going through their junk box full of old heat sinks.
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