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by Anonymous on July 17th, 2006

Anonymous

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Why does an electric fan make it feel cooler? Shouldn't it just move the hot air around a bit?

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  • by JackNicklaus on September 6th, 2006

    JackNicklaus

    Yes the motor on a fan will actually cause some heat to be added to the location of the fan. The benefit you'll receive is the air will be moved. This sounds simple enough, but the advantages of moving the air must be considered. If you are confined in a small room with allot of heat being generated within it the net effect will be to cool the room's temperature down by exchanging the hotter air inside the room with some cooler air from outside the room. The other benefit you could receive is if the wind causes the sweat on your skin to evaporate faster, you will be cooled down. The process of evaporation, turning a liquid into a gas, consumes energy or heat. You will feel cooler.

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