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18 de jun. de 2021 · Famous Stephen Hawking theory about black holes confirmed. News. By Ben Turner. published 18 June 2021. The areas of black holes are tied to the amount of disorder in the universe....
1 de jul. de 2021 · Researchers from MIT and other institutions have been able to observationally confirm one of Stephen Hawking’s theorems about black holes, measuring gravitational waves before and after a black hole merger to provide evidence that a black hole’s event horizon can never shrink, reports Caroline Delbert for Popular Mechanics.
- The Point of No Return
- Hawking Radiation
- The “Soft Hair” of Black Holes
Regardless of their size, they are all surrounded by an invisible boundary called the event horizon, the point of no return beyond which nothing can escape, not even light. Around that horizon the masses of dust and gas are so accelerated by the gigantic influx of gravity that they heat up and glow, emitting radiation and sometimes forming an accre...
Hawking’s demonstration that black holes can emit radiation is “his most important result,” Juan Maldacena, a physicist at Princeton’s Institute for Advanced Study who has made major contributions in string theory and quantum gravity, tells OpenMind. But at the time, this Hawking radiation opened a real schism between relativistic and quantum physi...
But for its part, the so-called information paradox has remained the most important of the questions raised by Hawking’s work, in the opinion of Maldacena. This question has kept physicists busy for the last half century, including Hawking himself, who until his death searched tirelessly for a theory capable of unifying general relativity and quant...
5 de abr. de 2024 · Society. Space. We finally know why Stephen Hawking's black hole equation works. Stephen Hawking and Jacob Bekenstein calculated the entropy of a black hole in the 1970s, but it took...
7 de jul. de 2021 · Using observations of gravitational waves, physicists at Cornell, MIT and three other institutions have for the first time confirmed Stephen Hawking’s area theorem of black holes, which states their event horizons should never shrink.
In 1971, Stephen Hawking proposed the area theorem, which set off a series of fundamental insights about black hole mechanics. The statement was a curious parallel of the second law of thermodynamics, which states that the entropy, or degree of disorder within an object, should also never decrease.
14 de mar. de 2024 · nature. muse. article. MUSE. 14 March 2024. Do black holes explode? The 50-year-old puzzle that challenges quantum physics. Stephen Hawking’s paradoxical finding that black holes...
