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Stephen Hawking is the man!
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Who predicted that black holes emit black body radiation in 1974?
Stephen Hawking predicted that black holes emit black body radiation, now known as Hawking radiation, in 1974. This groundbreaking idea challenged previous beliefs about black holes and their behavior.
What kind of radiation does a black hole emit?
Black holes are believed to emit something called Hawking radiation.
Can black holes emit radiation?
Yes it is theorized that black holes constantly emit radiation in the form of thermal energy (Heat) also called Hawking radiation and black-body radiation.
What happens when a star becomes a black dwarf?
Then it will not emit any more radiation - except that it will eventually re-emit any radiation it receives, especially the cosmic background radiation.Then it will not emit any more radiation - except that it will eventually re-emit any radiation it receives, especially the cosmic background radiation.Then it will not emit any more radiation - except that it will eventually re-emit any radiation it receives, especially the cosmic background radiation.Then it will not emit any more radiation - except that it will eventually re-emit any radiation it receives, especially the cosmic background radiation.
What is hawking radiation?
Hawking radiation is black body radiation that is predicted to be released by black holes.It is due to quantum effects near the event horizon.According to the quantum mechanical uncertainty principle, rotating black holes should create and emit particles. Black holes that lose more mass than they gain through other means are expected to shrink and ultimately vanish. Hawking radiation reduces the mass and the energy of the black hole and is therefore also known as black hole evaporation Micro black holes (MBHs) are predicted to be larger net emitters of radiation than larger black holes and should shrink and dissipate faster. Black holes are sites of immense gravitational attraction. Classically, the gravitation is so powerful that nothing, not even electromagnetic radiation(including light), can escape from the black hole. It is yet unknown how gravity can be incorporated into quantum mechanics, nevertheless, far from the black hole the gravitational effects can be weak enough for calculations to be reliably performed in the framework of quantum field theory in curved spacetime. Hawking showed that quantum effects allow black holes to emit exact black body radiation, which is the average thermal radiation emitted by an idealized thermal source known as a black body. The electromagnetic radiation is as if it were emitted by a black body with a temperature that is inversely proportional to the black hole's mass.
What was Stephen Hawking discovery?
he dicovered that black holes emit radiation
What do black holes emit that could allow them to be detected from the earth?
Black holes does emit radiation, but they cannot be detected from earth. We use gravitational lensing to "see" the black holes.
What kind of energy waves do black holes emit?
Black holes emit a form of energy called Hawking radiation, which consists of particles being emitted from the black hole's event horizon. This radiation causes the black hole to slowly lose mass over time.
What are all bodies emit called?
All objects and living things emit infrared radiation unless the object is not a black hole as well unless its temperature is not at the Absolute Zero ( I would call it an "infrared black hole") - such an object can only absorb infrared radiation.
How do black holes evaporate?
It's because they emit radiation, and radiation is a form of energy and energy is a form of mass.
What would happen if the milky way black hole became active?
It would emit a lot of radiation. Some distant black holes (or more accurately, the area around the black holes) emit more radiation than an entire galaxy. Such black holes are known as quasars.
Who proposed that black holes can evaporate?
Stephen Hawking was the first scientist to suggest that the black holes evaporate. His theory of Black Holes emitting radiation, also termed as Hawking Radiation.Hawking radiation is black body radiation that is predicted to be emitted by black holes, due to quantum effects near the event horizon. It is named after the physicist Stephen Hawking, who provided a theoretical argument for its existence in 1974, and sometimes also after the physicist Jacob Bekenstein who predicted that black holes should have a finite, non-zero temperature and entropy. Hawking's work followed his visit to Moscow in 1973 where Soviet scientists Yakov Zeldovich and Alexei Starobinsky showed him that according to the quantum mechanical uncertainty principle,rotating black holes should create and emit particles. Hawking radiation reduces the mass and the energy of the black hole and is therefore also known as black hole evaporation. Because of this, black holes that lose more mass than they gain through other means are expected to shrink and ultimately vanish. Micro black holes (MBHs) are predicted to be larger net emitters of radiation than larger black holes and should shrink and dissipate faster.In Hawking Radiation, Virtual particle pairs are constantly being created near the horizon of the black hole, as they are everywhere. Normally, they are created as a particle-antiparticle pair and they quickly annihilate each other. But near the horizon of a black hole, it's possible for one to fall in before the annihilation can happen, in which case the other one escapes as Hawking radiation.
