Article Diary - General Knowledge Digest

Do black holes exist?

Do black holes really exist? Do they radiate, as expected on theoretical grounds? Does this radiation contain information about their inner structure, as suggested by Gauge-gravity duality, or not, as implied by Hawking’s original calculation? If not, and black holes can evaporate away, what happens to the information stored in it? (Quantum mechanics does not allow information to be destroyed) Or does the radiation stop at some point leaving black hole remnants? Is there another way to probe their internal structure somehow, if such a structure even exists?

While general relativity describes a black hole as a region of empty space with a pointlike singularity at the center and an event horizon at the outer edge, the description changes when the effects of quantum mechanics are taken into account. Research on this subject indicates that, rather than holding captured matter forever, black holes may slowly leak a form of thermal energy called Hawking radiation. However, the final, correct description of black holes, requiring a theory of quantum gravity, is unknown.
0 (0)
Article Rating (No Votes)
Rate this article
Attached Files (1)
There are no comments for this article. Be the first to post a comment.
Security Code Security Code
Related Articles RSS Feed
Geographical Discoveries- World Geography Quiz
Viewed 2941 times since Sat, Jan 16, 2010
9 Useful Ways to Clean Many Things With Salt
Viewed 2742 times since Sat, Nov 14, 2009
Trade Names - Quiz Questions and Answers
Viewed 2640 times since Thu, Dec 31, 2009
Earth Day Quotes and Slogans
Viewed 1916 times since Wed, Apr 21, 2010
Branches of Science and their Definitions
Viewed 7569 times since Sat, Dec 26, 2009
Everyday Science Quiz Questions with Answers - Part 3
Viewed 3335 times since Mon, Dec 7, 2009
Capital of Countries
Viewed 4010 times since Thu, Dec 24, 2009
Some Simple Facts for General Knowledge
Viewed 1683 times since Thu, Dec 3, 2009