Einstein’s special relativity, which he formulated in his ... that the speed of light must be a constant, unaffected for example by the Earth’s rotation. Work through the equations that ...

Einstein received the Nobel Prize for one of the other ideas, but the special theory of relativity has since become the most well-known, perhaps of his career or even the entire field of physics!

For example, a person standing on a train platform ... Einstein knew that his theory of special relativity was partial. It ...

Top quarks follow the rules of special relativity day and night. Is there a time of day or night at which nature's heaviest elementary particle stops obeying Einstein's rules? The answer to that ...

Special relativity tells us motion warps space and ... what happened in the very earliest instants of the big bang, for example, when the universe was very small and gravity was very strong.

Special' means ‘in certain circumstances ... Click or tap on the labels below to discover each physicist's example of why general relativity continues to help explain the Universe around ...