Black Hole or Black Hole is a large enough concentration of mass so as to produce a very large gravitational force. A very large gravitational force is preventing any escape from it except through quantum tunneling behavior. Gravitational field so strong that 8kecepatan off nearby near the speed of light. There is nothing, including electromagnetic radiation that can escape the gravity, even light can only enter but can not get out or past it, here derived from the word "black". The term "black hole" has been widespread, although he was not pointing to a hole in the usual sense, but it is a region in space where all can not be returned. Theoretically, black holes can have any size, from microscopic to the size of the observable universe.
Theory of Black Hole or Black Holes
The theory of the existence of black holes was first proposed in the 18th century by John Michell and Pierre-Simon Laplace, further developed by the German astronomer Karl Schwarzschild, in 1916, based on general relativity theory of Albert Einstein, and increasingly popularized by Stephen William Hawking. At this time many astronomers who believe that almost all galaxies the wild universe around black holes in galactic centers.
Is the John Archibald Wheeler in 1967 which gave the name "black hole" that became popular in the world have actually become a favorite topic of science fiction writers. We can not see black holes but we can detect material that is attracted / sucked at him. In this way, astronomers have learned and identified many black holes in space through the observation that very carefully so that expected in space adorned by millions of black holes.
Origin of Black Hole or Black Holes
Black hole is created when an object can not withstand the power of the force of its own gravity. Many objects (including the sun and earth) will never become a black hole. The pressure of gravity on the sun and the earth is not sufficient to exceed the atomic and nuclear power within him that are against the pressure of gravity. But contrary to the object of very large mass, gravitational pressure was the one who wins.
Growth of the Black Hole or Black Holes
The masses of black holes continue to grow in a way to capture all the material nearby. All material can not escape the bondage of black holes if passed too close. So the object that can not keep a safe distance from the black hole will be exploited. Unlike the current reputation it bears stating that black holes can suck everything around it, a black hole can not suck the materials that were located very far from him. he could only pull the material through very close. Example: imagine our sun become a black hole with the same mass. Darkness enveloped the earth would not exist because the light emitted from a black hole, but the earth will remain around the black hole with the same distance and speed with current and does not enter into it sucked. The danger will threaten us only if the earth is 10 miles from the black hole, where it is still far from reality that the earth is 93 million miles from the sun. The black hole also can increase its mass in a way collided with another black hole to become a black hole is greater.
