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  1. 1 day ago · The letter came about when Hawking considered the implications of quantum physics on the formalism of black holes, phenomena that arise from Albert Einstein's theory of general relativity. This ...

  2. 4 days ago · Einstein used that concept to show that the force we call gravity — a phenomenon that sculpts the universe on the largest scales — is actually a consequence of geometry. Expressed more simply ...

  3. 4 days ago · The strategy is to apply Einstein’s general theory of relativity — a theory that equates gravity with the curvature of space-time — as far back into time as it can go. That’s the hope of three researchers: Ghazal Geshnizjani of the Perimeter Institute, Eric Ling of the University of Copenhagen, and Jerome Quintin of the University of ...

  4. 5 days ago · Ever since those earliest days of quantum mechanics, the theory ruling the microworld of atoms and particles, the holy grail of physics has been finding a theory of everything – uniting quantum mechanics with Einstein's theory of general relativity, which applies to the universe on large scales.

  5. 5 days ago · The case of gravity, however, is presently less clear. Most theorists strongly believe that making our model consistent with quantum theory (for matter) means replacing it by a quantum theory of gravity. But the purported point of BMV-type experiments is to replace this strong belief by conclusive experimental evidence.

  6. 1 day ago · Einstein unified the two ideas by suggesting that photons travel by the propagation of electromagnetic radiation (light waves), giving rise to the modern term wave-particle duality. In the photoelectric effect, low frequency light does not eject electrons from a metal such as Potassium.

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  8. 5 days ago · Nevertheless, he sensed that he had embarked on a possibly dubious enterprise, confessing to his friend Paul Ehrenfest, a physicist: “I have perpetuated something again . . . in gravitation ...