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Quantum Thermodynamics: A Steampunk Adventure with Nicole Yunger Halpern (#225)

Into the Impossible With Brian Keating

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The Entropy of a Demon

James clark maxwell was a british scientist who came up with the unified theory of electricity and magnetism. He said, suppose that we have this gas in a box, whose entrope properties are supposedly so simple to understand. Any time that a particle moves with high speed from the right of the box, then the demon lets it through. And any time a particle approaches the door with a low speed, then thedemon lets it through into the right hand side. If you have two different gases at two different temperatures and you have an engine, then you can let heat flow from hot to cold through the engine. The higher the speeds of the gas particles, the hotter the

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