Time travel has shifted from pure fantasy to a serious, if highly constrained, topic in modern physics. The equations that ...

Quantum mechanics and relativity are the two pillars of modern physics. However, for over a century, their treatment of space ...

Physicists have finally turned a long standing thought experiment into a laboratory reality, showing that electromagnetic ...

In physics, the treatment of time is a central issue. In physics, the treatment of time is a central issue. It has been treated as a question of geometry. One can measure time and treat it as a ...

With a clever demonstration that pits two giraffe owners against one another, Henry explains how, if two people are positioned at different vantage points, should they take a measurement of something ...

Ronald Mallett, a University of Connecticut physics professor, thinks time travel is possible--and he's designed an experiment that could do it. Basically, he wants to "swirl" empty space the way ...