... by and event horizon"" (e.g. Kaufmann 1979). Where the singularity is where all the matter has been completely crushed into the single point at the black holes center. Although the event horizon is sometimes described as the surface of a black hole, "There is nothing physical or tangible at the event horizon" ... (e.g. Kaufmann 1979). Also the size of the black holes event horizon can be calculated using Schwarzschild radius. The size (radius) of the black hole=mass of the black hole X (2G(gravitational constant)/ ... at the center of a galaxy and explains one way that galaxies form. T...

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... space have a gravitational force exerted upon them. In accordance with Einstein's "Theory of Relativity", this is because bodies that are very massive actually warp space. For example, if you have a two dimensional sheet of cloth, which represents space, and a bowling ball is placed at the center, the sheet will warp ... objects, but it is unable to reflect off to show their existence to an observer. Therefore the black hole is seen as a void in space. Black holes have a pertinent effect on time. According to Einstein's "General Theory of Relativity", time is not a constant (Hawking, 86)...

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... hole is "an extremely dense celestial body that has been theorized to exist in the universe" (Black hole, 1). It is believed that galaxy cores contain black holes because these areas are too dense and dark to be stars or clusters of stars. A black hole is a region of space that has so much mass ... to a high enough density. Scientist believe that most of the black holes that are actually out there were produced in the deaths of massive stars, so they expect those black holes to weigh about as much as a massive star. A typical mass for such a black hole would be about 10 times the mass of ...

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... to Ted Bunn, an astronomer at Berkley University, "A black hole is a region of space that has so much mass concentrated in it that there is no way for a nearby object to escape its gravitational pull, not even light." So, what does that mean? The following example will explain the nature of a black hole. ... A ball is thrown up into the air. It rises for a while, but it eventually falls. If the ball is thrown fast enough it is able to escape the gravitational field and continue rising. This is called the ... pull so large and escape velocity so high that even visible light could not esc...

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BLACK HOLES What happens if you fall into a black hole? Science fiction writers often speculate on what could happen if you fall into a black hole. A common suggestion is that if you fall into one you might fall into another region of space-time. This of course raises great possibilities for ... it is called a black hole(Davis 209). The laws of physics are time-symmetric, which baisicly means that if there are objects called black holes into which things fall into but not get out, then there ought to be other objects that things can come out of but not fall ... black hole to the white hole. T...

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... the escape velocity of that object would be greater to the speed of light. When a star dies, the nuclear fusion reactions driving the star cease because all the energy required for these explosions gets burned up. At the same time, the gravity left over pulls all the material inwards towards the star. I think it does this because there is no longer ... horizon, every "event" (things happening in space-time) stop. Nothing, not even light can get out. The radius of the event horizon is called a Schwarzschild radius. Two types of black holes exist: 1.Schwarzschild black hole. This type of ...

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... to believe that there is anything that is still a mystery. When scientists are looking for something new to discover or research, where do they turn? One of the last remaining mysteries in the Universe are black holes. These super-dense bodies in the Universe leave a lot to be discovered. We have ... galactic wells" are quite possibly how the Universe formed and how the Universe might end. They hold the information to understand exactly how the Universe started. Black Holes are very interesting to study and there is a lot of information about them; however, there is still a lot more to b...

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... the Milky Way. Direct proof remains that energy is vanishing from volumes of space without a trace. Black holes operate by mass, radiation, surface area, and gravity. Black holes have no hard surface for matter to accumulate, so matter is swallowed and disappears forever. The event horizon is simply a surface ... for a black hole because of its great mass," (Sullivan 34). To generate the observed emission, a hole would need to swallow or accrete the same amount of mass per year. This agrees with estimates of how quickly the ordinary star is losing mass to its companion, the black hole. T...

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... speed of light. There would be a region from which it would be impossible for anything to escape. This region is called a black hole. This paper will discuss the creation and discovery of black holes and many other questions about the inescapable black hole. Pierre Simon first thought of black holes back in 1796. His initial findings were based on the now discredited theory ... from the rotation of the hole. This energy-producing layer of a black 8 hole is known as the ergosphere. In principle, electrically charged black holes could exist. Yet, such objects are unlikely to form in the r...

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... approached. This led to this phenomena being dubbed "mass inflation." In order to understand what exactly a black hole is, we must first take a look at the basis for the cause of a black hole. All black holes are formed from the gravitational collapse of a star, usually having a great, massive, core. A star is created when huge, gigantic, gas clouds bind together due to attractive ... a point in space that just expels matter and energy. Also as a result of the powerful gravitational waves, most black holes orbit around stars, partly due to the fact that they were once stars. This may ca...

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Black Hole A black hole is a region of spacetime enclosed by an event horizon. A black hole is formed by the collapse of massive objects. If the heat and pressure supplied by the fusion of the material within the star is less than the gravitational pull inward, the object may collapse to form a white dwarf, a neutron star, or (if it is massive enough) a black hole. A black hole is termed "black" because nothing can escape from within it, not even light. Everything that passes through the event horizon is gone from the observable universe. A black hole is a region where matter collapses to infi...

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Black Holes The theory of relativity explains gravity as a curve of space-time caused by the presence of matter. If the curve is pretty weak, Newton's laws of gravity can describe most ... , €œdisappeared from the visible universe.€œ Some people don€™t think that black holes really exist; however, most physicists believe that they do. Even Einstein strongly denied that black holes exist, thinking, as did the majority of his colleagues, that black holes were a only a mathematical possibility. He died in 1955, before the term "black hole" was thought of and ... ob...

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... the end of its life. Upon many speculations, one of the most fascinating is the black hole theory. Not any star can become a Black Hole. For example, the possibility of our sun becoming a black hole is very unlikely, simply because it is too small. Only a very large star has the ... possibility to become a black hole. The definitions of black holes are sometimes controversial. In theory, a black hole is an area of highly concentrated mass. So concentrated, that no object can escape its gravitational pull. ... stars, they die. Speculation on their deaths is extremely speculative. The the...

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... which is scheduled to be finished in 2006. Physicists theorize that after the upgrade the accelerator might have enough power to create one of the donut-holes. Therein lies the problem: Without at least one dimension beyond the four which currently are know to exist, physicists have mathematically proven that it is ... The transportation would be almost instantaneous, greatly surpassing the speed of light, which scientists have lusted over for decades. However, to accomplish this feat a 5th dimension of specific nature must be employed to do the work for us. This 5th dimension would hav...

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... point in which it would take an infinite amount of time to reach the black hole. The first to really take an in depth look at black holes and the collapsing of stars, were a professor, Robert Oppenheimer and his student Hartland Snyder, in the early nineteen hundreds. They concluded on the basis ... in such a small area, that its escape velocity is greater than the speed of light. Most black holes orbit around stars due to the fact that they once were a star, and this may cause some problems for neighboring stars. If a black hole gets powerful enough it may actually pull a star into it a...

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... House School. In 1950, Hawking and his family moved to St Albans, Hertfordshire. He was 8 years old and he attended St Albans High School for Girls for a few months because at that time, younger boys could attend one of the houses. In St Albans, the family was considered highly intelligent. While eating ... like scientific subjects and decided to study mathematics at university. Hawking's father told him to study medicine because he was concerned that there were few jobs for mathematics graduates. He wanted Hawking to attend University College, Oxford. It wasn't possible to read math...

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... House School. In 1950, Hawking and his family moved to St Albans, Hertfordshire. He was eight years old and he attended St Albans High School for Girls for a few months because at that time, younger boys could attend one of the houses. In St Albans, the family was considered highly intelligent. While ... like scientific subjects and decided to study mathematics at university. Hawking's father told him to study medicine because he was concerned that there were few jobs for mathematics graduates. He wanted Hawking to attend University College, Oxford. It wasn't possible to read mathe...

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... of how the universe began and many believe in different things. Many different physicists have tried to prove the beginning of time or the existence of black holes, but none is as acclaimed as Stephen Hawking. He has had the most widespread acceptance of his theories. The question of where, when, and ... During this time Stephen was working on a theory that was going to disprove his dissertation for his Ph.D. This theory was that the universe didn't begin at one certain moment, but that multiple things happened, with multiple black holes. He gave this speech to a group of physicist, and ...

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... ideas on time travel and the universe is Stephen hawking. The scientific community takes Stephen Hawkins" ideas very seriously. His theories on black holes, wormholes and time travel have made us think that anything is possible. He has given all of us a new way of thinking with ... Scherniak, p.2 ln. 14) Hawking's graduate thesis discussed what happens when a star burns off its fuel and collapses into a black hole. In 1965 he applied for and received a research fellowship at Caisus College, Cambridge and married Jane Wilde. They have 3 children: Robert, Lucy, and Timothy (born 1967, 1970...

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... years ago common sense said man could never fly; now we travel all over the world. There are problems. The commonest are the so-called paradoxes. For example, if we could travel through time, imagine what would happen to a time traveller. If he/she travelled back in time and killed his/her ... stationary objects. In 1975, Professor Carrol Alley tested Einstein's theory using two synchronised atomic clocks. Carol loaded one clock onto a plane, which was flown for several hours, while the other clock remained on the ground. At the end of its flight, the clock on the plane was slightly beh...

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