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woodysooner
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if schwarzschild radius is a pt. at which no information can come back after going in. Then what is Hawking radiation?
Right. No particles can ever cross the event horizon from the inside to the outside. The particles that comprise Hawking radiation do NOT come from within the black hole, only from the region very close to the event horizon.woodysooner said:So the black hole doesn't emit radiation it's just the absence of the antiparticle that the particle come into view and can be seen, but tricks us because we think it just came out of the black void but it didint. am i right?
Virtual particle pairs have to have zero initial momentum when they are created. In other words, they have to be going exactly opposite directions. In a region very close to the event horizon, it happens quite regularly that one falls right in, and the other flies right off. I don't know the exact number of such events per unit time per unit surface area, but it should be easy to calculate. If you'd like me to show you such a calculation, let me know and I will look into it. Even if it's a "one in a million shot," it happens often enough to be significant.Second if a particle is connected to antiparticle and it comes close to a black hole how can it get ripped away from its antiparticle and only it fall into the black hole, wouldn't the grip be too strong for anything to escape, how can the half be sucked in and the other half run away, sounds like if it could happen it would be a one in a million shot.
Effectively, virtual particle pairs "borrow" energy from the universe when they are created. They "return" that energy when they annihilate. In the case of Hawking radiation, however, they never re-unite. The net result is that the black hole has given up some of its energy to allow the escaped particle to exist indefinitely -- to balance the universe's energy books, so to speak.
Hawking Radiation is a theoretical concept proposed by physicist Stephen Hawking in the 1970s. It suggests that black holes emit radiation over time, which causes them to lose mass and eventually evaporate.
The Schwarzschild Radius is the distance from the center of a black hole at which the escape velocity is equal to the speed of light. Hawking Radiation is directly related to the size of the Schwarzschild Radius, as the smaller the radius, the more intense the radiation emitted by the black hole.
Currently, Hawking Radiation is purely theoretical and has not been directly observed. However, scientists have been able to detect indirect evidence of this radiation through observations of the surrounding environment of a black hole.
If Hawking Radiation is confirmed, it would have significant implications for our understanding of the behavior of black holes. It could also potentially solve the "information paradox," which is the conflict between the laws of physics that suggest information cannot be destroyed, and the idea that black holes eventually evaporate and disappear.
There are ongoing debates and controversies surrounding Hawking Radiation, particularly in regards to its theoretical basis and how it may impact our understanding of black holes and the universe. Some scientists also question whether it can be observed or measured in a practical way.