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.

Experts tell Newsweek why parents should let kids make mistakes, learn from experience, and even face a few natural consequences.

President Trump argues his sweeping tariffs will bring jobs back to the United States. The businesses challenging the tariffs say they're doing more harm than good.