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Q.

Whatz a BLACK HOLE ... ???

Tags: sports, hole, technology
Asked by Pradipta pati, 11 Sep '12 08:24 pm
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Answers (4)

1.

A black hole is a hole in an Universe which swallows everthing which comes under its gravitational influence? We have one such super massive black hole at the the center of our Milkyway of galaxy around which our Sun along with billions of suns revolving.
Answered by harish kumar, 11 Sep '12 08:33 pm

 
  
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2.

A star that shrinks under its own gravitational force
Answered by vinay, 11 Sep '12 08:25 pm

 
  
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3.

A black hole is a region of spacetime where gravity prevents anything, including light, from escaping.
Answered by Ataur Rahman, 11 Sep '12 08:24 pm

 
  
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4.

A black hole is a theoretical entity predicted by the equations of general relativity. A black hole is formed when a star of sufficient mass undergoes gravitational collapse, with most or all of its mass compressed into a sufficiently small area of space, causing infinite spacetime curvature at that point (a "singularity"). Such a massive spacetime curvature allows nothing, not even light, to escape from the "event horizon," or border.

Black holes have never been directly observed, though predictions of their effects have matched observations. There exist a handful of alternate theories, such as Magnetospheric Eternally Collapsing Objects (MECOs), to explain these observations, most of which avoid the spacetime singularity at the center of the black hole, but the vast majority of physicists believe that the black hole explanation is the most likely physical representation of what is taking place.
Answered by anil garg, 12 Sep '12 01:51 am

 
  
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