In the Information Paradox by Hawkins, what do black holes do?
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As a result of the black hole information paradox, a black hole actually destroys quantum information about any particles that cross its event horizon, which violates the scientific tenet that information cannot be destroyed.  A consequence of this is that black holes are identical except for their respective masses, electrical charges and angular velocities; no other characteristics of a black hole can be measured.
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The black hole information paradox results from the combination of quantum mechanics and general relativity. It was a contentious subject for science since it violated a commonly assumed tenet of science - that information cannot be destroyed. See Liouville's theorem (Hamiltonian) and unitary transformation.\n\nIn 1975, Stephen Hawking and Jacob Bekenstein showed that black holes should slowly radiate away energy, which poses a problem. From the no hair theorem one would expect the Hawking radiation to be completely independent of the material entering the black hole. However, if the material entering the black hole were a pure quantum state, the transformation of that state into the mixed state of Hawking radiation would destroy information about the original quantum state. This violates Liouville's theorem and presents a physical paradox.\n\nMore precisely, if we have an entangled pure state and we throw in one part of the entangled system into the black hole while keeping the other part outside, we get a mixed state after we take the partial trace over the interior of the black hole. But since everything within the interior of the black hole will hit the singularity within a fixed finite time, the part which is traced over partially might "disappear", never to appear again. Of course, we don't really know what goes on at singularities once quantum effects are taken into account, which is why this is conjectural and controversial.\n\nHawking was convinced however because of the simple elegance of the resulting equation which 'unified' Thermodynamics, Relativity, Gravity and Hawking's own work on the Big Bang. This annoyed many physicists, notably John Preskill, who in 1997 bet Hawking and Kip Thorne that information was not lost in black holes.\n\nThere are various ideas about how the paradox is solved. Since the 1998 discovery of the AdS/CFT correspondence, the predominant belief among physicists is that information is preserved and that Hawking radiation is not precisely thermal but receives quantum corrections. Other possibilities include the information being contained in a Planckian remnant left over at the end of Hawking radiation or a modification of the laws of quantum mechanics to allow for non-unitary time evolution.\n\nIn July 2004 Stephen Hawking announced a theory that quantum perturbations of the event horizon could allow information to escape from a black hole, which would resolve the information paradox. Basically, his argument assumes the AdS/CFT correspondence which states that an AdS black hole is dual to a thermal conformal field theory, which is unitary. However, as of 2004 the full details of the theory have yet to be published, so most peers are reserving judgment before accepting the result. When announcing his result, Hawking also conceded the 1997 bet, paying Preskill with a baseball encyclopedia (ISBN 189496327X) 'from which information can be retrieved at will'. Thorne, however, remains unconvinced of Hawking's proof and declined to contribute to the award.\n\n\n[edit]\n\nThe Equation\n\nEntropy of a black hole.\n\n\nS = &#92;frac{c^{3}A}{4 &#92;hbar G}\n\n\nS = entropy, c = speed of light, A = surface area, ħ ("h-bar") is the reduced Planck's Constant (or Dirac's Constant), G = constant of gravitation.
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This theory is formulated by lot of laws and was given by a theory of relativity in which Albert Einstein says that if two things travel in opposite direction with or greater than the speed of light you could look into the future..\nbut it sounds to be impossible ...\nwhile some scientists say that if a object goes near a black hole and a small torque is given to that it starts rotating at a speed nearly equal to light...\n           you can refer theory of relativity for more answers...
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We can only theorize about the physics that happens there.  Nothing escapes black holes, not even light.  Everything is crushed to sub-atomic densities and stays there.  They suck up everything and give out nothing ( like some people).\n\nSome believe that the entire universe will eventually be consumed by its black holes.  Don't worry, not in your lifetime.\n\n\nOh, Bermuda?  Relax.  Black holes require matter densities higher than the sun, higher than neutron stars.  There's nothing even close to that on earth.
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Steven Hawking has recently changed his view that no "information" could escape a black hole.  Current thinking is that as matter falls into a black hole, some radiation / information escapes across the event horizon.  So according to current thinking black holes are not completely "black"
195816
actually scientist have a lot of theoretical knowledge of black holes. \n\nYou would fall until you were at the center(in a finite amount of time from your frame of reference), at which point you would be compressed almost to nothing. An outside observer would still be able to see you though for a while and things would appear stretched.  try wikipedia's entry on black holes. http://answers.com/black_hole\n\nRepeat? Where's the original?
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stephen hawking has said that balck holes indeed behave like black bodies, emitting some radiation, usually gamma and x rays. \nAlso, when matter falling into the black hole causes the black hole to spin. This creates a magnetic field like that of Earth's, emitting the high energy particles in the form of jets through the north and south poles of the rotating blackhole.\n\nSo, some kind of info might be released from a black hole, thats if the spaceship can detect these signs.
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In 1997, the physics theorists Kip Thorne, Stephen Hawking and John Preskill made a public bet on the outcome of the black hole information paradox:\n\nThorne and Hawking argued that since general relativity made it impossible for black holes to radiate, and lose information, the mass-energy and information carried by Hawking radiation must be "new", and must not originate from inside the black hole event horizon. Since this contradicted the idea under quantum mechanics of microcausality, quantum mechanics would need to be rewritten.\n\nPreskill argued the opposite, that since quantum mechanics suggests that the information emitted by a black hole relates to information that infell at an earlier time, the view of black holes given by general relativity must be modified in some way\n\nIn 2004, Hawking announced that he was conceding the bet, and that he now believed that black hole horizons should fluctuate and leak information. Kip Thorne declined to concede the bet at that time. As of 2004, Hawking's argument that he has solved the paradox has not yet been accepted by the community, and a consensus has not yet been reached that Hawking has provided a strong enough argument that this is in fact what happens.
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The X-ray source in the constellation Cygnus, aptly named Cygnus X-1, is the best candidate for a black hole that we know of. Most Scientists now agree that it is a black hole. Stephen Hawking won a nobel prize for demonstrating that black holes do not in fact absorb everything that comes near them, as was previously thought, they can and do emit some particles from near their 'event horizons'. This is known as Hawking radiation.
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it depends on the holes size and the speed they approach each other.\n\nfrom theory it was assumed that they just merge and form a larger one\n\nobervations indicate that black holes may explode while merging and create extremly violant outbreaks of gamma radiation\n-> gamma-ray-bursts
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We have no idea what happens to any matter inside a black hole. The laws of physics that we know do not apply.
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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.\n\nThe existence of black holes in the universe is well supported by astronomical observation, particularly from studying X-ray emission from X-ray binaries and active galactic nuclei.
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"...Does the black hole continue to increase in mass and increase the gravitational affect?..."\nWe haven't been studying black holes long enough yet to determine if their mass does increase from all the material being drawn in. Theoretically it would.\n\n"...does all that stuff get shot out in another direction?..."\nExactly what happens to material that disappears beyond the event horizon of black holes isn't known for sure because there's no way science can observe what goes on there. A few speculations persist about so-called  'white holes,' the drain of black holes where everything re-appears in another universe or dimension.\n\n"...Do black holes ever die? And if so, what happens to them?..."\nAgain, science doesn't know because the observational evidence just isn't there. However, Stephen Hawking has developed a workable theory showing that over great lengths of time black holes can actually radiate some of their energy and in time would evaporate.
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A black hole is believed to be a neutron star that collapsed in itself because of extreme gravity. The gravity would get so strong that it forces even time and space into itself including light (that's why it's called black). Also associated with a "wormhole" and figured to be a portal to parallel universes or looped back to this universe in a different time, after the theory of the Einstein-Rosen-Bridge.\nI don't know if someone tried to measure the value of the gravity or if there is even a speculated formula but I don't think so.
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A black hole is a spacial anomalie with an extremely high gravitational mass, and supercondenses matter into an infinitismally small singular. If all the matter in the universe could be condensed into a ball the size of a speck of dust, then the size of the ball inside a black hole would be a fraction of a fraction of that, too small to see with the most powerful microscope on planet Earth. The hole however is much different, similar to a funnel. So at different points in the hole the size measurement is different. There is no actual hole however, more like a bend in the fabric of space, so nothing ever actually leave the universe, only changes density, form and location, among other things.
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waves have mass, the back hole suck mass, therefore the black hole sucks waves
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a black hole is a point of infinite density and gravitational pull. First of all you would be dead from different gravitational pulls from the black hole. Second of all, time from your perspective would stop, assuming that einstein is correct and your image would be spread out over an infinite period of time so your friend would see nothing.