Introduction to general relativity: Difference between revisions

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{{General relativity sidebar}}

'''General relativity''' is a [[scientific theory|theory]] of [[gravitation]] developed by [[Albert Einstein]] between 1907 and 1915. The theory of general relativity says that the observed gravitational effect between masses (e.g. stars and planets etc) results from their warping of [[spacetime]], which can be explained through atwo trampolinedifferent casemass ball on trampoline.

By the beginning of the 20th century, [[Newton's law of universal gravitation]] had been accepted for more than two hundred years as a valid description of the gravitational force between masses. In Newton's model, gravity is the result of an attractive force between massive objects. Although even Newton was troubled by the unknown nature of that force, the basic framework was extremely successful at describing motion.