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

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 ...

But did you know that Albert Einstein also had a philosophical side? Born in 1879, Einstein was a deep thinker from childhood. But Al didn’t just think—he also thought about the art of ...