Anomalous” heat flow, which at first appears to violate the second law of thermodynamics, gives physicists a way to detect quantum entanglement without destroying it.

When the air turns cold, the first instinct is to bump up the heat. But small adjustments can make your home feel noticeably ...

When it gets cold out, most people are tempted to crank the heat up, but there are more economical ways to heat your house ...