Discover the 25 fundamental physics concepts that govern our universe, from classical mechanics to quantum mysteries.

"I do not consider the main significance of the general theory of relativity to be the prediction of some tiny observable effects, but rather the simplicity of its foundation and its consistency," ...

How would our world be viewed by observers moving faster than light in a vacuum? Such a picture would be clearly different from what we encounter every day. "We should expect to see not only phenomena ...

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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 ...

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 ...

This month the world is celebrating the 100th anniversary of Albert Einstein's theory of general relativity, which shaped our concepts of space, time and gravity, and spurred generations of scientists ...

One hundred years ago this month, an obscure German physicist named Albert Einstein presented to the Prussian Academy of Science his General Theory of Relativity. Nothing prior had prepared scientists ...