Reversing Entropy with Maxwell's Demon
July 25, 2018
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14:01Now PlayingReversing Entropy with Maxwell's Demon
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Can a demon defeat the 2nd Law of Thermodynamics?
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Previous Episode:
The Misunderstood Nature of Entropy
Entropy is sometimes described as a measure of disorder or randomness. The second law of thermodynamics – the law that entropy must, on average, increase – has been interpreted as the inevitability of the decay of structure. This is … misleading. As we saw in our episode on the physics of life, structure can develop in one region even as the entropy of the universe rises. Ultimately, entropy is a measure of the availability of free energy – of energy that isn’t hopelessly mixed in thermal equilibrium. Pump energy into a small system and complexity can thrive..
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