7 weird facts about black holes. Prepare to be wowed by the mysterious cosmic wonders that are black holes. Join our newsletter list. Go Email is required Want to know more? Newsletters. The Science of Information: From Language to Black Holes covers the exciting concepts, history, and applications of information theory in 24 challenging and eye-opening half-hour lectures taught by Professor Benjamin Schumacher of Kenyon College. A prominent physicist and award-winning educator at one of the nation's top liberal arts colleges The information paradox has arisen when Hawking wrote down his theory for radiating black holes. Because of the radiation process of the black hole, the previously pure state of the matter inside However, the information whose absence is quanti?ed by the Bekenstein-Hawking entropy is not irretrievably lost. It is located on the horizon of the black hole, probably in the form of stranded strings (see below for a de?nition), and will be radiated into the original asymptotic region as the black hole evaporates. 1.1. Some Classical Facts A black hole is forms when any object reaches a certain critical density, and its gravity causes it to collapse to an almost infinitely small pinpoint. A black hole is formed when a star, 2.5 times the mass of our sun run out of its hydrogen and other nuclear fuel, it gets cold and will shrink to an infinitely small point. Black holes are the strangest objects in the Universe. A black hole does not have a surface, like a planet or star. Instead, it is a region of space where matter has collapsed in on itself. This catastrophic collapse results in a huge amount of mass being concentrated in an incredibly small area. 12 Physics-bending Facts about Black Holes When a large star runs out of fuel it may collapse into a black hole. All black holes start out small then grow in size as they consume matter from Black holes may answer questions about the beginning and the future of the universe. Black holes may answer questions about the beginning and the future of the universe. reproduce the entropy of all black holes, but this argument does not reproduce the entropy exactly. Recently a precise calculation of the entropy of a neutral black hole in string theory was achieved (Emparan and GH, 2006). This was not for a four dimensional black hole, but a rotating five dimensional black hole in Kaluza-Klein theory. Peek Into This Free eBook: Learn Black Hole Facts & Theories! Black holes are things of wonder. These dark beasts become bright beacons of light when they feed on hot gas, yet they remain shrouded contain supermassive black holes,there are far too few of them - only about 10% of all galaxies are active - to account for all the black holes that once powered the quasars.By the early 1990s, astronomers were faced with the pros-pect that supermassive black holes might be located at the centre of every galaxy, making them as fundamental a the black hole interior. There is a striking convergence of interest in quantum entanglement, from the black hole information problem, from Ryu and Takayanagi's holographic entanglement entropy [12] (where it relates spacetime geometry to the dual eld theory), from condensed matter physics the black hole interior. There is a striking convergence of interest in quantum entanglement, from the black hole information problem, from Ryu and Takayanagi's holographic entanglement entropy [12] (where it relates spacetime geometry to the dual eld theory), from condensed matter phy