Since string theory is related to the theory of quantum gravity, a good place to begin is by giving an overview of the scientific understanding of gravity, which is defined by Einstein’s theory of general relativity. Instead of gravity as a force acting between objects, Einstein […] Einstein derived his theory using mathematics. The solutions to that equation yield … Einstein’s theory of gravitation is expressed in one deceptively simple-looking tensor equation (tensors are a generalization of scalars and vectors), which expresses how a mass determines the curvature of space-time around it. The solutions to that equation yield … "At some level, the majority of physicists believe that Einstein's theory of gravity, called general relativity, is correct. Instead, Einstein showed that gravity is a result of the warping, or curving, of space and time, which made up the same space-time “fabric.” These ideas about space-time and gravity became known as Einstein’s theory of general relativity. Visualizing Einstein’s Ideas. General relativity takes the form of field equations, describing the curvature of space-time and the distribution of matter throughout space-time. Einstein’s Gravity. https://phys.org/news/2020-10-einstein-description-gravity-harder.html If, as Newton claimed, gravity was a constant, instantaneous force, the information about a sudden change of mass would have to be somehow communicated across the entire universe at once. Einstein’s theory of gravitation is expressed in one deceptively simple-looking tensor equation (tensors are a generalization of scalars and vectors), which expresses how a mass determines the curvature of space-time around it. General relativity was Einstein’s theory of gravity, published in 1915, which extended special relativity to take into account non-inertial frames of reference — areas that are accelerating with respect to each other. Why talk of curvature? The solutions to that equation yield … Einstein’s theory also triumphantly punched a hole in Newton’s logic. Albert Einstein would revolutionize the way physicists saw gravity. In Einstein's hands gravitation theory was thus transformed from a theory of forces into the first dynamical theory of geometry, the geometry of four dimensional curved space-time. Einstein’s theory of gravitation is expressed in one deceptively simple-looking tensor equation (tensors are a generalization of scalars and vectors), which expresses how a mass determines the curvature of space-time around it. Einstein spent more than seven years developing it, and it was worth the wait. The effects of […] The most successful theory of gravity known to humanity is Einstein's famous theory of general relativity. Albert Einstein came with his question about Newton’s Law of Gravitation: Suppose, there is a force that exists between two …
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