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Not much is really known about white holes... including the question whether they exist, or even can exist. The term "white" hole has simply been used in comparison with a "black hole", which is in some ways the opposite.
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∙ 10y ago
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Why are black holes round?
Black holes are round because they are formed from dead stars and white holes. As you can guess a star is a sphere and that is why black holes are round.
Do white holes suck up objects like black holes do?
no. white holes are actually an object predicted by scientists to exist on the other side of a black hole. it is predicted to spit out objects that entered a black hole.
Were there any sightings of white holes or black holes in the last 100 years?
Black holes have been detected (or at least evidence of their activity) White holes have never been observed, and remain theoretical for the time being.
What are white holes?
Hypothetical celestial bodies that behave in an opposite manner to black holes and rather than pulling everything in they spit matter out. White holes also have a unstable gravity and collapse and turn into black holes.
Are there more white dwarfs of more black holes?
I think white dwarfs. This is because they are much more low mass than black holes. White dwarfs are much more common in the universe than black holes, because we have only discovered a few black holes whereas we are aware of many white dwarfs.
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.
If there are black holes does that also mean that there are white holes scientifically?
No, it does not mean that.Black holes and white holes are two different "solutions" of the equations of General Relativity; but that doesn't imply that one, or the other, actually exist. It is now almost certain that black holes exist; as for white holes, there are theoretical problems that may make them impossible, such as: * A white hole is, in many aspects, there reverse of a black hole. And just as there is no way to destroy a black hole, there is no way to CREATE a white hole. * It seems that in a white hole, entropy would decrease over time.
Is a white hole just as dangerous as a black hole?
There is no evidence that white holes exist.
Do white holes blow?
White-holes are a theoretical hypothesis that they are the opposite of a black-hole, in which case they would push matter out into space yes.
What object in the night sky is not luminous?
the sun,an artificial satellite,an asteroid,black holes,white holes,worm holes
Are white holes dangerous?
Well first of all white holes aren't proven to exist yet so nobody knows if they pose a threat at all. Unlike black holes, white holes repel everything and spit stuff back into space, so they wouldn't really pose a threat unless they spat out a large amount of mass right at the earth.
Do you think there are more white dwarfs or more black holes in the universe?
More white dwarves. Most stars will become white dwarves at the end of their lifetime. On a "select few" will become black holes - the most massive stars.
