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Sabtu, 08 Januari 2011

Mystery of Black Hole

Sabtu, 08 Januari 2011
The mystery of black holes that dot the universe virtually similar to the concept series of strange events that happened in the mysterious Bermuda Triangle.

But unlike the cases in the Bermuda Triangle that swallows average ship or aircraft, the black hole could be said to be more powerful, he described gravity-shaped hole that size can be wider or bigger than the sun, and he was able to attract and swallow what are close by, including the planets. Even particles cahayapun not able to escape the gravitational pull of a black hole super terrible.

The mystery that surrounds the black hole phenomenon however can only be studied from far, because the ability of science and technology, man is still not able to bring them over to the hole.

The theory of black holes presented over two hundred years ago. In 1783, Western scientists, John Mitchell sparked theories about the possibility of his being a black hole after he was researching and reviewing Isaac Newton's theory of gravity.

He argued, if the object is thrown straight up, then he will be separated from the influence of Earth's gravity after reaching speeds in excess of 11 kilometers per second, then of course there are planets or other stars who have a greater gravity than Earth.

The term 'black hole' was first used by the U.S. physicist John Archibald Wheeler in 1968. Wheeler gave the name as his deep black hole can't be seen, helped light his deep interest in it so that the surrounding area becomes dark.

According to the theory of stellar evolution, black holes comes from a kind of blue stars with surface temperatures over 25,000 degrees Celsius. When burning hydrogen in a blue star that took approximately 10 million years completed, he became a giant blue star.

Then, the star becomes cooler and a giant red star. In that phase, due to the gravitational pull of its own, having a giant red star explosion called a Supernova or two types of star and produce the Neutron stars and black holes. we look at these two pictures Supernova :

Observations of X-ray telescope in space for over a decade demonstrates the power of black hole's gravitational pull causes the star lot was destroyed and swallowed up by it.

Experts astronomers have succeeded in observing how the black holes suck gas floating around. The gas was sucked into heat that emits radiation in a range of wavelengths, from radio waves to X-rays.

Based on observations of skilled astronomers from the Max Planck Institute for Extraterrestrial Physics, Germany, witnessed a star close to a giant black hole and eventually vanished.

Black holes are successfully witnessed the giant central galaxy RX J1242-11 which is 700 million light years from Earth. The star the size of our solar system is the Sun.The star is destroyed bit by bit and pulled into the hole for a few days. In the early stages, he lost the gases that are around him.

After that, the star becomes hotter millions Darajat Celsius and finally disappeared into a black hole. In the process, it releases a powerful energy that is equivalent to the energy produced in the supernova explosion. Astronomers can estimate the position of the black hole by looking at the light around stars or gas in space.

If a place doesn't exist in the space surrounding the light but there are many celestial objects converge at high speed before ahirnya disappears, then the point is nothing but a black hole.

There are a lot of black holes throughout the universe, in fact there is a theory that says the Milky Way there is also a black hole!. So is there any possibility that eventually the sun and its planets including the earth surrounding it will be swallowed by a black hole? "

Today, astronomers answer, no! kerana compared with black holes in other galaxies him, the nature of black holes in the Milky Way is said to be in a state of calm.

The mystery surrounding the black hole will continue to attract the interest of astronomers to continue his research so get a satisfactory answer. While humans have not been able to venture deep into space, then it failed to obtain answers and theories without evidence will continue to put forward to solve the mysteries of the universe.
 
Source From : http://isshima.blogspot.com/2009/01/misteri-black-hole.html

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