Astronomy Space
Black holes (Astronomy)
Black holes are probably the most fascinating (theoretical) objects in astronomy. Such objects, the scientists believe must exist, would account for the spin rate of our galaxy that can not be explained by the combined mass of visible stars. But what exactly are Black holes?
A paper, "Philosophical Transactions of the Royal Society in London," as early as 1783, John Michell, a Cambridge don written emphasized, was a star, massive and compact enough could have such a strong gravitational force that not escape the light. It took Einstein's general theory of relativity im 20 Century and the work of an Indian graduate student, Subrahmanyan Chandrasekhar, 1928, to work, the mathematical details to be like a massive star to a black To spawn hole.
A black hole is likely to start with an asterisk. The sun, with a diameter of about 865,400 miles, is considered an average sized star, and is basically a huge thermo-nuclear "reactor" that enough "to keep fuel" to burn it for many, many generations. But what happens when A star of the fuel burn?
There are several scenarios, depending on the size of the star. A cold (burned out) stars over a half times as large as the sun (which today is known as the Chandrasekhar limit) will collapse under its own weight. A live stars themselves many times the size of the sun, not because of the collapse the passive force generated its powerful nuclear explosions. When this nuclear power is gone, but how solid body subjected to dramatic changes.
A star less massive than the Chandrasekhar limit has yet to stop the ability to contracting around a radius of only a few thousand miles. In such a state It is called "White Dwarf", and one cubic centimeter of its mass weighing hundreds of tons.
Another scenario for a cold star on one or twice the mass of our sun into a contract "neutron star." A neutron star can have a radius of about ten miles and it weighs as much as hundreds of millions of tons per cubic centimeter.
Since the attraction force increases proportional to the mass when stars collapse of its surface gravity is stronger, the more they compact become. That is because with a neutron star, for example, can a body with a ten-mile radius are about to do the exercise several times a gravity corresponds to a star the size of the sun. And the massive (in the colloquial sense)!
But as spectacular as these changes seem, they are nothing compared to the collapse of a star several times the size of the sun. In such a case, the collapse is not stopped within a radius of thousands or even ten miles. The force its massive weight ensures its continued collapse until it reaches a point after the general theory of relativity, where it is infinite density and space-time curvature. Be Radius is a fraction of a neutron star. And so a "black hole is" launched.
A black hole has such a strong attraction, that nothing, not even light can escape its pull. This makes a black hole "invisible" - if you shone the most powerful light in such a body, She could not see because the light into the black hole would never get caught and go reflect on the eyes. Moreover, in a black hole, the laws of Nature as we know it would completely break down, so that no viable method of predicting future events in the black hole.
But if we can not see black holes, as we know that they exist? Although direct evidence for their existence is still playing us, we have evidence to support not) prove (that appear to be their very existence. We have cases of a star around an invisible object, sometimes assumed to be a black hole. Occasionally, we see spectacular "Fireworks" in remote regions of outer space, which are sometimes assumed that produced by matter spiraling into a black hole, so powerful Energy surges. (The reason that this energy is able to reach us because they have not yet entered the black hole of "Event Horizon" said point of of no return, from which nothing can escape.)
So far, all of the above, though not fully proven, based on mathematical calculations, logical Conclusions and observations. However, some fanciful speculation that appear on the bases, border on the bizarre. One theory is that in a black Hole when it physically possible, how could be in a "worm hole" in space. That is, you can come in quite a different part of the room.
As you can see, scientists sometimes go on that are verifiable and venture into the unknown and even the downright bizarre. What I find bizarre is, dare not even like some of the scientists in the concept of God, despite the fact that there is more than enough logical evidence to suggest that an intelligent creator must leave. Why? Because we can not "prove" the existence of God? How can we really prove that anything other than science is accepted.
by Josh Greenberger from shopndrop.com
About the Author
Josh Greenberger: A computer consultant for over two decades, the author has developed software for such organizations as NASA's Goddard Institute of Space Studies, AT&T, Charles Schwab, Bell Laboratories and Chase Manhattan Bank. Since 1984, the author's literary works have appeared in such periodicals as The New York Post, The Daily News, The Village Voice, The Jewish Press, and others. His articles have ranged from humor to scientific to topical events. Visit his site: shopndrop.com
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