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  1. 3 days ago · As it turns out, special relativity is crucial to explaining the correct chemical activity of the elements predicted by chemistry, the behavior of magnetic materials, and the behavior of subatomic particles in particle accelerators, all of which involve particles such as electrons or protons moving at relativistic speeds.

  2. 5 days ago · The birth of relativity. To make it all work, Einstein realized there had to be some give-and-take. You can't just have length contraction — moving rulers shrink — on its own. You also need ...

  3. 6 days ago · As part of his theory of general relativity, Einstein predicted in 1916 that gravity propagates as a wave, mediated by a massless particle called a graviton that travels at the speed of light. These particles comprise gravitational waves in the same way that photons comprise light waves.

  4. 5 days ago · Examples of techniques for solving physics problems are free body diagrams, Feynman diagrams, spacetime diagrams, the Schroedinger equation, and partition functions. Physics is a science. The thing that sets physics apart from chess is that it describes the real world. You want to prove this.

  5. en.wikipedia.org › wiki › Black_holeBlack hole - Wikipedia

    2 days ago · Einstein's theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. The boundary of no escape is called the event horizon. A black hole has a great effect on the fate and circumstances of an object crossing it, but it has no locally detectable features according to general relativity.

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  7. 3 days ago · In cosmological theory, dark energy is a general class of components in the stress-energy tensor of the field equations in Einsteins theory of general relativity. In this theory, there is a direct correspondence between the matter-energy of the universe (expressed in the tensor) and the shape of space-time .

  8. 2 days ago · General relativity. Tests of general relativity serve to establish observational evidence for the theory of general relativity. The first three tests, proposed by Albert Einstein in 1915, concerned the "anomalous" precession of the perihelion of Mercury, the bending of light in gravitational fields, and the gravitational redshift.

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