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Sunday, December 19, 2010

"Hawking Was Right (Probably)"

http://www.scientificamerican.com/article.cfm?id=hawking-was-right-probably



"In 1974 Stephen Hawking postulated that black holes should give off a trickle of particles, or radiation, from their outer boundaries...In the midst of all the celebrity, the original theory of Hawking radiation, as the black hole phenomenon is known, has almost been forgotten, at least by the general public. The faint emission has never been detected from a real black hole, and researchers have not been able to produce the effect in the lab. "

A group of scientists in Italy recently recreated the effect of a black hole using a piece of glass to re-create a black hole’s “event horizon” —the point of no return, in which even light gets absorbed. At the "event horizon" was where Hawking postulated was the radiation.
It's crazy to imagine that black holes emit radiation, because all my life I've thought that nothing would escape a black hole. However, somehow something apparently manages to escape the pull of the black hole.

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