The General Theory of Relativity
The General Theory of Relativity The General Theory of Relativity is a theory of gravitation that was developed by Albert Einstein in the early 20th century . It describes the behavior of objects in the presence of a gravitational field , and it has been called one of the two pillars of modern physics , alongside quantum mechanics . The General Theory of Relativity replaces the traditional view of gravitation as a force between objects with a more subtle concept: the curvature of space-time . According to this theory, mass and energy cause space-time to curve, and objects move along the shortest path, or geodesic, in this curved space-time. One of the most famous predictions of the General Theory of Relativity is the phenomenon of gravitational lensing , where light is bent as it passes through a gravitational field . This effect has been observed and confirmed many times, and it provides strong evidence for the validity of the theory. Another important prediction of the Ge...