Physicists in China have brought one of Einstein’s thought experiments into reality—but not quite with the outcome he hoped ...

A single atom as a movable slit: Researchers realize Einstein's thought experiment in original form, observing ...

Scientists in China have performed an experiment first proposed by Albert Einstein almost a century ago when he sought to ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. When we divide up matter into the smallest possible chunks that it's ...