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Maxwell's demon demonstration turns information into energy

http://www.physorg.com

Maxwell's demon was the invention of Scottish mathematician and theoretical physicist James Clerk Maxwell, who wanted to contradict the second law of thermodynamics (although the name was given to the imaginary being later). This law implies it is not possible to invent a perfect heat engine able to extract heat from a hot reservoir and use all the heat to perform work, because some of the heat must be lost to a cold reservoir.

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