Albert Einstein ... He called these scenarios Gedankenexperiments, which is German for thought experiments. Despite the name, Einstein's mental exercises incorporated data from actual experiments.

Ever since Einstein revealed his ... Rather, he took the knowledge of the day, saw an inconsistency—a piece of a puzzle that didn't fit, so to speak—and thought about possible explanations.

"The state of mind which enables a man to do work of this kind ... is akin to that of the religious worshipper or the lover; the daily effort comes from no deliberate intention or program, but ...

Albert Einstein ... which is German for thought experiments. Here are a few thought experiments that demonstrate some of Einstein's most groundbreaking discoveries.

Columbia University's theoretical physicist Brian Greene shares how this morbid concept would go on to become what Albert Einstein called the happiest thought of his life. Greene is the co-founder ...

Galactic lenses like this one, which is the closest astronomers have ever found, were predicted by Albert Einstein in 1936 from his theory of general relativity. At the time, he thought such an ...