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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: Infinity and Beyond
If theories of their existence are true, black holes are the most
powerful force in the known physical universe. Many people are familiar
with the term black hole, but few people actually know anything about
them. A black hole forms as a result of a massive star running out of fuel to
burn (Chaisson, 193). Once the star is no longer exerting outward force by
burning off gases, it begins to collapse under its own intense, inward
gravity (Chaisson, 193). It is like slowly letting the air out of a balloon.
Once the star is compacted to a certain size, while its mass, or weight,
remains the same, its gravity becomes so powerful that nothing can
escape it (Hawking, 87). This critical size to weight ratio is known as the
Schwarzchild Radius (Hawking, 87). Once a black hole is created in this
way, an invisible area, or line around it exists. If any object crosses this
line, it can no longer escape the gravitational force of the black hole
(Hawking, 87). This line is called the event horizon (Hawking, 87).
If black holes are proven to exist, beyond theoretical physics, then they
would probably be a very common anomaly in this universe. In 1915,
Albert Einstein put forth the first real
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