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  2. Penrose diagram - Wikipedia

    en.wikipedia.org/wiki/Penrose_diagram

    Penrose diagrams are often used to illustrate the hypothetical Einstein–Rosen bridge connecting two separate universes in the maximally extended Schwarzschild black hole solution. The precursors to the Penrose diagrams were Kruskal–Szekeres diagrams. (The Penrose diagram adds to Kruskal and Szekeres' diagram the conformal crunching of the ...

  3. Roger Penrose - Wikipedia

    en.wikipedia.org/wiki/Roger_Penrose

    Roger Penrose. Sir Roger Penrose (born 8 August 1931) [ 1 ] is a British mathematician, mathematical physicist, philosopher of science and Nobel Laureate in Physics. [ 2 ] He is Emeritus Rouse Ball Professor of Mathematics in the University of Oxford, an emeritus fellow of Wadham College, Oxford, and an honorary fellow of St John's College ...

  4. Spacetime diagram - Wikipedia

    en.wikipedia.org/wiki/Spacetime_diagram

    A spacetime diagram is a graphical illustration of locations in space at various times, especially in the special theory of relativity. Spacetime diagrams can show the geometry underlying phenomena like time dilation and length contraction without mathematical equations. The history of an object's location through time traces out a line or ...

  5. Hawking radiation - Wikipedia

    en.wikipedia.org/wiki/Hawking_radiation

    A black hole of one solar mass (M ☉ = 2.0 × 10 30 kg) takes more than 10 67 years to evaporate—much longer than the current age of the universe at 1.4 × 10 10 years. [25] But for a black hole of 10 11 kg, the evaporation time is 2.6 × 10 9 years. This is why some astronomers are searching for signs of exploding primordial black holes.

  6. Shadows of the Mind - Wikipedia

    en.wikipedia.org/wiki/Shadows_of_the_Mind

    Shadows of the Mind: A Search for the Missing Science of Consciousness. Shadows of the Mind: A Search for the Missing Science of Consciousness is a 1994 book by mathematical physicist Roger Penrose that serves as a followup to his 1989 book The Emperor's New Mind: Concerning Computers, Minds and The Laws of Physics. Penrose hypothesizes that:

  7. Black hole information paradox - Wikipedia

    en.wikipedia.org/wiki/Black_hole_information_paradox

    The black hole information paradox[ 1 ] is a paradox that appears when the predictions of quantum mechanics and general relativity are combined. The theory of general relativity predicts the existence of black holes that are regions of spacetime from which nothing—not even light—can escape.

  8. Black hole - Wikipedia

    en.wikipedia.org/wiki/Black_hole

    Around the time of alignment, extreme gravitational lensing of the galaxy is observed. A black hole is a region of spacetime where gravity is so strong that nothing, not even light and other electromagnetic waves, is capable of possessing enough energy to escape it. [ 2 ] Einstein 's theory of general relativity predicts that a sufficiently ...

  9. Gravitational lens - Wikipedia

    en.wikipedia.org/wiki/Gravitational_lens

    Simulated gravitational lensing (black hole passing in front of a background galaxy). In general relativity, light follows the curvature of spacetime, hence when light passes around a massive object, it is bent. This means that the light from an object on the other side will be bent towards an observer's eye, just like an ordinary lens.