A few years ago I climbed over a gate and found myself gazing down at a valley. After I’d been walking for a few minutes, ...

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.

If you were able to visualize the passage of time, it may appear as looping ribbons of color, these fragments ribboning and glinting whenever they refracted light. Researchers at the University of ...