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建立人际资源圈Black_Holes
2013-11-13 来源: 类别: 更多范文
Black Holes
Black Holes
Astrophysicists, for the most part, agree that black holes do exist. There is observational evidence from X-rays and the Hubble telescope that black holes do exist and might be in the center of some galaxies. The properties of a black hole are defined by its mass, charge, and spin.
A black hole is a part of space that has so much mass concentrated in it that nothing could escape its gravitational pull. Black holes have so much concentration of mass that their escape velocity id so high that even light can not escape. Since nothing is faster than light, that means that nothing can escape from a black hole. Scientists in the 1930s showed that when a massive star runs out of its hydrogen fuel, it could not support itself against its gravitational pull and collapses into a black hole.
Massive objects can distort space and time, making the usual rules of geometry not applicable. Near a black hole space is extremely distorted and causes black holes to have strange properties. Black hole will have an event horizon. This is the boundary of the black hole. Once you pass the
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