Well connected: an optical clock at PTB was used in the comparison. (Courtesy: PTB) Atomic clocks in France, Germany and the UK have been used to perform the best-ever confirmation of time dilation as ...

For the first time, a group of physicists has written down a warp drive concept that does not ask the universe for impossible ...

To make the admittedly weird concept of relativity easier to understand, a team of developers has created a video game that slows down the speed of light. Relativity is the theory that space and time ...

The theories of Prof. Albert Einstein and those of other theoretical physicists and mathematicians were attacked here this week-end by Viscount Samuel, who has been president of the Royal Institute of ...