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Feb 22, 2011 at 1:19 comment added José Figueroa-O'Farrill By the way, something I should have mentioned, if only in passing, is that one statement of the second law of thermodynamics is that a certain nowhere-vanishing one-form $\alpha$ (the so-called heat form) should fail (maximally) to be a contact structure; that is, $\alpha \wedge d\alpha = 0$.
Feb 21, 2011 at 23:57 vote accept Phi Le
Feb 21, 2011 at 9:52 history answered José Figueroa-O'Farrill CC BY-SA 2.5