Black Holes Essay -- essays research papers fc

scorch holes are one of the many things in the universe that scientists still have a muddy understanding ab step to the fore. However, with the improbable advances of technology, we are able to understand much than what we have in the past. Today, the and way to observe these incredible objects are by looking for actinotherapy from the gas surrounding it. What are they? erosive holes are no more than a dead spark advance. A star that is considered alive would be our sun. The sun still produces energy by converting hydrogen into helium, thus considered to be alive. formerly a star has run out of hydrogen, it begins its dying process. The final story may result in a black dwarf, which is a wee cool object no longer radiating energy, or if the star harbors enough mint it could result in a black hole. foul holes are defined as a collapsed star. The difference between a black dwarf and a black hole is the original mass of the star, which determines whether or not that star w ill have enough graveness force to collapse upon its self and form a suction, or to watch as that small cool object, a black dwarf. Why do black holes suck everything in? To understand why material that enters a black hole is unable to escape, one must understand the apprehension of escape velocity. This is the velocity (speed) at which any material needs to outmatch in regularise to escape from something. Because, as Einstein said, What ever goes up must come down In other words, in order for a space craft to exit the Earths automated teller so that it must not come down, it must exceed a certain speed. In order to figure out the Earths escape velocity one takes the square root of the planets mass divided by the planets radius. satelliteS MASS / PLANETS RADIUS = ESCAPE VELOCITY On Earth with a radius of 6,500 km, the escape velocity would be 11 km/sec. hence to launch any object away from Earth, the object must activate (escape) faster than 11 km/sec. All of this is of cou rse the result of gravity. However, theorize a huge vise that squeezed the Earth to one-quarter its present size. What would then happen to the escape velocity? The velocity would increase because the mass would increase as the radius increased. Thus, taking the square root of a larger number, terminate up with a larger number that being the escape velocity. The literal escape velocity of this hypothetical question would double it making it 22 km/sec. Taking ... ... horizon, which would emit radiation because of this. The thermal radiation is so hot that it is expected to be x-ray types of radiation. Once the radiation surpasses the level off horizon, the x-rays cease and the material inside continues in great distortion. This is what scientists are exhausting to link to their observation of such radio active areas within out universe today. Bibliography Abell, George O. Exploration of The Universe. Holt, Rinehart and Winston, 1975. Berger, Melvin. Quasars, Pulsars and Black Holes In Space. Canada Longman Canada Limited, 1977. Bisnovatyi-Kogan, G.S. At The Border of Eternity. Science. February, 27, 1998 1321- 1322. Chaisson, Eric. comparatively Speaking. Canada The Readers Digest Association Ltd., 1990. Down The Galactic Drain. Discover. April 1998 25. Shipman, Harry L. Black Holes, Quasars, and The Universe. capital of Massachusetts Houghton Mifflin Company, 1976. Sullivan, Walter. Black Holes- The Edge of Space, The End of Time. New York Anchor Press, 1979. Taylor, John G. Black Holes the End of The Universe?. New York Random House Inc., 1973. The Astronomers- Searching for Black Holes. Community television of Southern California, 1991.