"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," ...

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In 2015, the general theory of relativity will be 100 years old. In November 2015, Albert Einstein gave weekly lectures to the Prussian Academy of Sciences in which he set out the fundamental field ...

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 ...

The theory of relativity describes two connected scientific theories developed by the physicist Albert Einstein: special relativity and general relativity. Collectively, relativity is the idea the ...

A letter by Albert Einstein that is unusually written in Italian has fetched £49,000 at auction. The Austrian genius’s 1925 missive to Italian electrical engineer Giovanni Giorgi defends his 1915 ...

This year marks the 100th anniversary of a scientific breakthrough that fundamentally changed our world. In 1915, Albert Einstein presented his theory of general relativity, which proposed that ...

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 ...