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 ...

It’s all to do with the second law of thermodynamics, which was framed in the mid-19th Century. The second law was a major step forward for science, but it also felt like one giant leap ...

The second law of thermodynamics underpins all of classical reality. It is the reason why it's easier to make things messy, why you can’t have perpetual motion, why you age, and maybe even why ...