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Alternate cooling

  1. Jan 13, 2009 #1
    Does't it seam odd that we have to use energy to cause something to loes energy. In a freezer you compress the gas (energy expended) to cool and de compress, so as to cool your fridge. Isn't there a way to cool somthing without useing energy (short of sending it to the antarctic).
     
  2. jcsd
  3. Jan 13, 2009 #2

    Vanadium 50

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    You cool something essentially by placing it in contact with something colder. If you aren't in the antarctic, and don't have anything colder lying around, you have to make something that's colder. That takes energy.
     
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