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.
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
First in Space - Space General Knowledge Quiz Questions
Viewed 2757 times since Sat, Dec 12, 2009
320 Useless But Good To Know Facts
Viewed 2969 times since Sun, Jan 31, 2010
Facts You Didn't Know About Your Body
Viewed 1551 times since Thu, Dec 24, 2009
Proverbs on Experience - Famous Quotes on Experience
Viewed 2855 times since Mon, Oct 26, 2009
Variety of Animals
Viewed 2031 times since Sat, Dec 26, 2009
Scientific Terms Explained - N to Z
Viewed 1854 times since Sat, Dec 19, 2009
Test Article
Viewed 1098 times since Thu, Nov 19, 2009