Maxwell's demon

English

Etymology

Named after physicist James Clerk Maxwell (1831–1879) and demon, and probably from Greek daemon, a mythological being intermediate between gods and men.

Noun

Maxwell's demon (plural Maxwell's demons)

  1. A hypothetical creature created for a thought experiment. Maxwell’s demon, if it existed, would act as a sort of gate guard by sorting between higher-energy molecules and lower-energy molecules within an enclosed space. Because such a sorting process would tend to decrease entropy, it would violate the second law of thermodynamics.
    • 1966, Thomas Pynchon, chapter 5, in The Crying of Lot 49, New York: Bantam Books, published 1976, →ISBN, page 77:
      She did gather that there were two distinct kinds of this entropy. One having to do with heat-engines, the other to do with communication. The equation for one, back in the ’30's, had looked very like the equation for the other. It was a coincidence. The two fields were entirely unconnected, except at one point: Maxwell's Demon.

Translations

See also

Further reading
This article is issued from Wiktionary. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.