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How did Stephen hawking prove that black holes are actually white?
Wiki User
∙ 9y ago
Professor Hawking didn't really prove black holes were white. One of his famous contributions to black hole theory is that black holes interact thermodynamically with the universe (as if they have some intrinsic temperature relating to entropy) and can emit antiparticles near the event horizon which "drain" energy and thus, per mass-energy equivalence, drain mass from the black hole, and over long periods of time could cause a black hole to "evaporate" entirely. The radiation is now called Hawking radiation. So maybe in a strict sense one might call them "not entirely black" instead of using the term white.
The term "white hole" does appear in astrophysical theory but relates to an entirely different, and, to date, unobserved phenomenon notionally the opposite of black holes which can only emit matter, and which, although they add a parity or symmetry to the black hole theory, are considered somewhat speculative.
Wiki User
∙ 9y ago
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Who studied black holes and the subatomic plarticles that radiate from them?
Stephen Hawking did.
What problem involving black holes did Stephen Hawking solve?
Not long before his death, Stephen Hawking published a solution to his own black hole information paradox.
How many facts does Stephen Hawking know about black holes?
Professor Stephen Hawking knows a bunch of facts about black holes. The count would be too difficult to quantify and probably not as interesting as the information itself.
Is Stephen hawking famous for anything other then black holes?
well, he's smart
What are the achievements of Stephen Hawking?
Stephen Hawking has proposed that black holes emit radiation. He also writes books about theoretical physics, even for non-specialist audiences.
Who explained how the universe began and what black holes are?
I think that it was Stephen hawking NO it was your mum
What famous astronomer studied black holes?
Stephen Hawking
What is Stephen Hawking's works?
Studying space and black holes
When did Stephen hawking begin making theories about black holes?
1970 - Stephen Hawking's essay titled "Black Holes" won the Gravity Research Foundation Award in January 1971.
What was Stephen Hawking discovery?
he dicovered that black holes emit radiation
What does Stephen hawking do in his spere time?
He studied more about black holes.
What work is Stephen hawking doing?
Studying space and black holes
Who studied black holes and the subatomic plarticles that radiate from them?
Stephen Hawking did.
Does Stephen Hawking have prove that black holes are actually white?
Not exactly - What Stephen Hawking did was to promote a rationalization for an argument that black holes and white holes have similar natures. In quantum mechanics, the black hole emits Hawking radiation, and so can come to thermal equilibrium with a gas of radiation. Since a thermal equilibrium state is time reversal invariant, Stephen Hawking argued that the time reverse of a black hole in thermal equilibrium is again a black hole in thermal equilibrium. This implies that black holes and white holes are similar objects with the same nature. However the classical consideration for white holes is that they are the reverse of black holes and theoretically support the wormhole hypothesis by pairing a black hole with a white hole.
What problem involving black holes did Stephen Hawking solve?
Not long before his death, Stephen Hawking published a solution to his own black hole information paradox.
How many facts does Stephen Hawking know about black holes?
Professor Stephen Hawking knows a bunch of facts about black holes. The count would be too difficult to quantify and probably not as interesting as the information itself.
What has Stephen hawking discovered or invented?
a theory on how black holes exert radiation
