The second law of thermodynamics says, in simple terms, entropy always increases. This principle explains, for example, why you can't unscramble an egg. When you purchase through links on our site, we ...

A fundamental rule that determines the fate of the universe The second law of thermodynamics means hot things always cool unless you do something to stop them. It expresses a fundamental and simple ...

Proceedings of the National Academy of Sciences of the United States of America, Vol. 55, No. 6 (Jun. 15, 1966), pp. 1379-1385 (7 pages) ...