what is a white hole?
549712
In astrophysics, a white hole is a postulated celestial body that is the time reversal of a black hole. While a black hole acts as a point mass that draws in matter, a white hole acts as a point mass that repels matter.\n\nWhite holes appear as part of the vacuum solution to the Einstein field equations describing a Schwarzschild wormhole. One end of this type of wormhole is a black hole, drawing in matter, and the other is a white hole, emitting matter. While this gives the impression that black holes in this universe may connect to white holes elsewhere, this turns out not to be the case for two reasons. First, Schwarzschild wormholes are unstable, disconnecting as soon as they form. Second, Schwarzschild wormholes are only a solution to the Einstein field equations in vacuum (when no matter interacts with the hole). Real black holes are formed by the collapse of stars. When the infalling stellar matter is added to a diagram of a black hole's history, it removes the part of the diagram corresponding to the white hole [1].\n\nThe existence of white holes that are not part of a wormhole is doubtful, as they appear to violate the second law of thermodynamics.\n\nQuasars and active galactic nuclei are observed to spew out jets of matter. This is now believed to be the result of polar jets formed when matter falls into supermassive black holes at the centers of these objects. Prior to this model, white holes emitting matter were one possible explanation proposed.
241248
try here\nhttp://en.wikipedia.org/wiki/Black_hole
661081
A black hole is a concentration of mass great enough that the force of gravity prevents anything past its event horizon from escaping it except through quantum tunnelling behaviour (known as Hawking Radiation). The gravitational field is so strong that the escape velocity past its event horizon exceeds the speed of light. This implies that nothing, not even light, inside the event horizon can escape its gravity. It is, however, theorized that wormholes can provide an exit path for energy or matter. The term "black hole" is widespread, even though it does not refer to a hole in the usual sense, but rather a region of space from which nothing can return.
143766
Simple!  A manhole is round so that the cover can never fall in.  If it were any other shape, like a square, rectangle or oval, you could take the cover out, flip it sideways and drop it in, but with a round hole and a round cover, it will always be just a little too big.\n\nPart 2:  I would still call it a hole if it was square.  Why wouldn't you?  Plenty of holes aren't round.  Button holes are very narrow compared to their length.  And I guess the Indian Government aren't concerned with people dropping manhole covers into a sewer, or didn't think about it.
314377
Masses with large gravitational field bend space all the time. Light traveling towards a star bends at close proximity and strengthens out when its farther away.\n\nBlack holes are said to hold immense gravitational field that not only does it bend space and time, it can also rip a hole through our 4-dimensioned universe.
913560
striped shank or hole.
71429
A hole is a hole and it is always a whole hole.  Some holes are big holes and some holes are small holes, but all holes are whole holes and none can be half holes.  And that my friend is the whole hole whole truth.  Can you dig it?
400271
Essentially, though this is not definitive (for that, see Wikipedia), white space is any kind of space character. A space character indicates that there is a space between characters. For example, the space character (0x20 - the one you get when you press the keyboard) indicates that a distance by placed between one character and the next.\n\nA hard space forces there to be a visible space in a given location. The space (0x20) is not really a hard space for two reasons:\n1. It can fold into a line space at the end of a line; and\n2. Extraneous spaces are often disregarded (as in SGML)\n\nA non-breaking space character (nbsp entity in HTML) will never fold (break) or get disregarded, by definition. Therefore, it is a hard space.\n\nLine spaces can be considered hard spaces because they force a change in the flow of text and cannot be compressed into single characters (or expanded into multiple characters).\n\nAll non-hard spaces are soft spaces.
1166146
Yes........more or less. A Black hole is a small view of what the universe as a whole will be like billions of years from now.
439060
cause wat makes the wet stuff come out is around the entry way of the hole
1160171
its a MATHIMATICAL prediction that warmholes (or "shortcuts" in spacetime... so you fly into black hole and boom you're in another part of the universe or another universe all together) exists\n\nUnfortunatly this prediction bares no physical merrit as neither the black hole is capable of "letting things fall through" nor is a "whitehole" capable of existing for more then one instance (aside the fact that it cannot form, period)\n\nThe mathematical model is beautiful though, if you know much math I suggest you check it out.!
13072
A black hole is defined as a place where light can not escape due to the gravitational force.  The proof that they exist are the equations of gravity and experiments in labritories where miniture black holes have been created that evaporate in nanoseconds.
1057805
A black hole is a star that has collapsed to the point that the empty space in the atoms no longer exists.  They are solid matter, though not matter that exists anywhere on earth.  They are called black holes because the gravitation force is so large that even light cannot excape.  The link below gives a decent explanation.
1064513
None. It's a hole - it has nothing in it.
663273
We have found black holes in the universe but never a "White hole". A white hole is a concept that arises out of tweaking Einstein's equation. Theoretically a white hole would be connected to a black hole through space time and it would spew out all the matter and energy that the black hole sucked in. The issue is that the white hole emerged from looking at einsteins equations in a vacuum with no matter. Mathematically this connection would be highly unstable and would most likely disappear as soon as it formed. But mathematically this situation could happen. It has never been found though. I hope that helped
611063
Well ! As it Goes,(In your terms) ;-) !\nThere Are As Many ***Holes In This World, As There Are People ! \nSo Basically Its Every ***Hole to His/Her Own ***Hole Opnion!\n\nWITH DUE RESPECTS TO ALL ***HOLES(As you put it) !\nLMAO !\nMy Apologies Fellas !
187110
becaue it is as* hole