The Bayesian Second Law of Thermodynamics

(Preposterous Universe) – Sean Carroll:

There is a mystery lurking in how we think about entropy and the Second Law – a puzzle that, like many such puzzles, I never really thought about until we came up with a solution. Boltzmann’s definition of entropy (logarithm of number of microstates in a macrostate) is very conceptually clear, and good enough to be engraved on his tombstone. But it’s not the only definition of entropy, and it’s not even the one that people use most often.  …

preposterousuniverse…2015/08/11…thermodynamics

Carnot heat engine

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