In his discussion of accelerated motion on page 60 of "The Meaning of Relativity," Albert Einstein made an approximation that allowed him to develop the theory of relativity further. Einstein ...

The biggest open problem in the foundations of physics is that Einstein’s theory of gravity, General Relativity, does not ...

Presenting a new perturbative method to deal with the gravitational N-body problem in general relativity. A novel approach to construct global and local reference frames leads to explicit ...

Yesterday, I wrote about the core concepts needed to understand quantum physics, which is one of the two pillars of modern physics. The other, of course, is the theory of relativity, the full and ...

Cormac O’Raifeartaigh reviews The Perfect Theory: a Century of Geniuses and the Battle Over General Relativity by Pedro G Ferreira Fighting it out: an artist's impression of two black holes circling ...

Strangely, although we feel as if we sweep through time on the knife-edge between the fixed past and the open future, that edge—the present—appears nowhere in the existing laws of physics. In Albert ...

General relativity and quantum theory are the two pillars of modern physics, peerlessly accurate in their respective realms of the very large and the very small. But where they meet, they produce ...

Compared with other books on history of science, Peter Galison’s current offering has drawn a lot of attention in the general press. The New York Times, for example, ran a glowing two-page feature ...