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Black holes
- Stephen’s greatest scientific achievement was a discovery about black holes in 1974 that shook the world of physics. According to Einstein’s theory, nothing — including light — can escape from inside a black hole. That’s why it’s black. But Stephen found that black holes are not really completely black.
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Mar 14, 2018 · His fame among researchers was founded on a series of studies that wed Albert Einstein's great theory of gravity, general relativity, with the strange world of quantum mechanics,...
Stephen’s greatest scientific achievement was a discovery about black holes in 1974 that shook the world of physics. According to Einstein’s theory, nothing — including light — can escape ...
Apr 25, 2024 · Stephen Hawking, the brilliant British physicist and cosmologist, revolutionized our understanding of black holes and the universe through his groundbreaking research and resilience in battling ALS.
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- Gravitational Singularity
- Black Hole Dynamics
- Hawking Radiation
- Dawn of Galaxies
- Wave Function of The Universe
Einstein’s theory of gravity allows singularities – locations in spacetime where the gravitational field of an astronomical body causes it to appear infinitely curved. Although the existence of singularities was unconfirmed but in the year 1970, Hawking and Penroseimplemented the same theory to the entire universe validating that time and universe ...
The second lawof black hole dynamics was postulated by him. It explained that the total surface area of a black hole could never get smaller. He also worked on the “no hair” theoremwhich postulates that black holes can be characterized by three parameters namely, mass, angular momentum, and electric charge.
Physicists mostly believed that nothing could escape a black hole, but Hawking used quantum theory to explain that black holes emit heatwhich continues until they exhaust their energy and eventually vanish. Although this process is very slow and requires time equivalent to the age of the universe to evaporate a black hole of same mass size as the s...
The British physicist also supported the cosmological inflationwhich describes how the universe expanded exponentially just after the Big Bang and gradually settled down to a slower expansion rate. He was the first one to explain how diminutive variations at the time of expansion may give rise to different galaxies in the universe.
In a quest to create a quantum theory of gravity, he collaborated with Jim Hartle in the year 1983 and proposed the wave function of the universe. This theory is known as the Hartle–Hawking state. It says that the Universe has no origin and it is still used by physicists to calculate the properties of the universe.
Stephen William Hawking CH CBE FRS FRSA (8 January 1942 – 14 March 2018) was an English theoretical physicist, cosmologist, and author who was director of research at the Centre for Theoretical Cosmology at the University of Cambridge.
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Jan 17, 2024 · Stephen Hawking's discoveries, characterized by a deep understanding of the complexities of the cosmos, have reshaped our comprehension of black holes, the origin of the universe, and the fundamental laws governing reality. While Hawking is no more, his intellectual legacy continues to inspire us.
Aug 28, 2019 · Stephen Hawking was a scientist known for his work with black holes and relativity, and the author of popular science books like 'A Brief History of Time.'
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