BLACKHOLE

Black hole

A black hole is a region of spacetime from which gravity prevents anything, including light, from escaping. The theory of general relativity predicts that a sufficiently compact mass will deform spacetime to form a black hole. Around a black hole, there is a mathematically defined surface called an event horizon that marks the point of no return. The hole is called "black" because it absorbs all the light that hits the horizon, reflecting nothing, just like a perfect black body in thermodynamics. Quantum field theory in curved spacetime predicts that event horizons emit radiation like a black body with a finite temperature. This temperature is inversely ...

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Black Hole

Black Hole is a twelve-issue comic book limited series written and illustrated by Charles Burns and published first by Kitchen Sink Press and then Fantagraphics. It was released in collected form in 2005 by Pantheon Books.

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black hole

Noun

  1. A gravitationally domineering celestial body with an event horizon from which even light cannot escape; the most dense material in the universe, condensed into a singularity, usually formed by a collapsing massive star.
  2. A sphere of influence into which or from which communication or similar activity is precluded.
  3. An entity which consumes time or resources without demonstrable utility.
  4. A dungeon or dark cell in a prison; a military lock-up or guardroom.


The above text is a snippet from Wiktionary: black hole
and as such is available under the Creative Commons Attribution/Share-Alike License.

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