maxwell's demon

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• February 29. 2016 from wordnet.princeton.edu

  Maxwell's demon — noun — english

  an imaginary creature that controls a small hole in a partition that divides a chamber filled with gas into two parts and allows fast molecules to move in one direction and slow molecules to move in the other direction through the hole; this would result in one part of the container becoming warmer and the other cooler, thus decreasing entropy and violating the second law of thermodynamics