I CAN understand a good deal of H. D.'s courteous reply to my letter (NATURE, Nov. 24, p. 808), for example, that there are degrees in understanding. But much remains as to which I should like ...

MAY I have space for a last letter about the difficulties of the ordinary man with respect to relativity and kindred puzzles? Of course there is such a thing as relativity. We take it into account in ...

From smashing particles together to analyzing the properties of a supermassive black hole, much of physics research takes place far beyond the realm of our everyday experience. However, there is one ...

[youtube=http://www.youtube.com/watch?feature=player_embedded&v=uu7jA8EHi_0] Understanding relativity is hard but playing games is easy. What’s a physicist to do ...

Albert Einstein is unquestionably one of the greatest scientists to ever live. He’s responsible for likely the most well-known equation of all time, and decades after his death, his work is still a ...

The mysteries surrounding the origins of the universe have long intrigued scientists and philosophers alike. New research, published in the Living Reviews in Relativity, introduces an innovative ...