Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Thought experiment - micro gate

  1. Jul 14, 2008 #1
    This baffles me, because the device outlined below could create energy ...

    Theres two tanks A & B with a microscopic gate between them

    Air in A & B starts at say 25 degrees

    whenever a faster than average moving molecule approaches the gate in A a sensor opens the gate and lets in pass into B
    If a slow moving molecule approaches the gate from B, the sensor opens the gate and allows it into A

    So perhaps after time t, the air in A is at 23 degrees and the air in B is at 27 degrees

    In theory the 'sorting gate' could be a very low energy device.
    The temp difference between A & B could be used to drive a heat engine and get energy out.

    Where is the flaw in this theoretical argument? I cant find one. In theory particle sorting could be done to generate heat differences??
     
  2. jcsd
  3. Jul 14, 2008 #2

    CompuChip

    User Avatar
    Science Advisor
    Homework Helper

Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Thought experiment - micro gate
  1. Thought Experiment (Replies: 20)

  2. Thought Experiments (Replies: 16)

  3. Thought experiment (Replies: 3)

  4. Thought Experiment (Replies: 9)

  5. Thought Experiment (Replies: 13)

Loading...