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Einstein 's Theory of General Relativity
Gravitational waves predicted by Albert’s Einstein’s general theory of relativity have been detected directly at last. Einstein was right.
In 1905, Albert Einstein found that the laws of physics are the same for all non-accelerating observers, and that the speed of light in vacuum did not depend on the motion of all the observers. This was the theory of special relativity. It provided a new framework for all of the physics and introduced new concepts of space and time.
Einstein then invested 10 years to include acceleration in the theory and published his theory of general relativity in 1915. In it, he determined that massive objects cause a distortion in space-time, which is felt as gravity.
The Tug of Gravity
Sir Isaac Newton described gravity as a force of attraction that two objects exert on one another when he formulated his three laws of motion. The force tugging between two bodies depends upon how massive each one is and the distance between them. Even the center of earth pulls you towards it which keeps you firmly logged on the ground and your center of mass is pulling back at earth but since your mass is negligible as compared to earth it barely feels the tug from you. Newton’s law assumes that gravity is an innate force of an object that can act over a distance.
In his theory of special relativity, Albert Einstein determined that the laws of physics are the same for all non-accelerating observers, and he demonstrated that

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