Physicists have performed an experiment that seems to contradict the foundations of quantum theory – at first glance. The team reversed a quantum measurement in a prototype quantum information ...

This is a classic introductory physics problem. Basically, you have a cart on a frictionless track (call this m 1) with a string that runs over a pulley to another mass hanging below (call this m 2).

Physics, especially the part about forces and motion, often feels like a maze of confusing concepts and formulas. If you’ve ever stared at a problem about an object moving or a force acting and ...

This press release is available in German. A team of physicists at the University of Innsbruck, Austria, performed an experiment that seems to contradict the foundations of quantum theory -- at first ...