Entropy, the amount of molecular disorder, is produced in several systems but cannot be measured directly. A new equation sheds new light on how entropy is produced on a very short time scale in laser ...

For Boris Belousov, vindication came too late. When the Soviet biochemist was awarded his country’s prestigious Lenin prize in 1980, he had been dead for 10 years. At least he lived long enough to see ...

Entropy also increases in initially ordered quantum systems until it reaches a final state of disorder. Entropy and the direction of time Equating 'entropy' with 'disorder' is not entirely correct.