the principle of relativity is the requirement that the equations describing the laws of physics have the same form in all admissible frames of reference...

In physics, the special theory of relativity, or special relativity for short, is a scientific theory of the relationship between space and time. In Albert...

theory of general relativity. The strong form requires Einstein's form to work for stellar objects. Highly precise experimental tests of the principle limit...

The theory of relativity usually encompasses two interrelated physics theories by Albert Einstein: special relativity and general relativity, proposed...

In physics, the relativity of simultaneity is the concept that distant simultaneity – whether two spatially separated events occur at the same time –...

Einstein derived the theory of special relativity in 1905 from principle now called the postulates of special relativity. Einstein's formulation is said...

Mach's principle.[page needed] There is a fundamental issue in relativity theory: if all motion is relative, how can we measure the inertia of a body...

to the principle of relativity of Galileo Galilei restating it precisely for mechanical systems. This can be stated as: as far as the laws of mechanics...

principle of relativity and the principle of stationary action in mechanics can be used to derive Maxwell's equations, and vice versa. The theory of special...

Albert Einstein presented the theories of special relativity and general relativity in publications that either contained no formal references to previous...