Subject:
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Re: Black Holes
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Newsgroups:
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lugnet.off-topic.geek
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Date:
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Tue, 12 Aug 2003 04:37:22 GMT
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Viewed:
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438 times
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In lugnet.off-topic.geek, Tom Sciortino wrote:
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The “matter spouts” mentioned later in this thread I believe have been
proven, sort of. Stephen Hawking has shown that black holes can “evaporate”
away. I don’t remember the reasons, but it’s some quantum mechanics trick.
From a google search:
http://xxx.lanl.gov/abs/gr-qc/0010055
-- Tom
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The “matter” a black hole gives off is Xrays. The constant streamout of Xrays
is what will, in about 10e60 years (what? no exponent in FTX?) cause black holes
to start exploding. At this time, exploding black holes will be the only source
of heat in the universe. All the protons in the universe will have decayed by
10e45 years. And long before this time no galaxy would be visible from any
other. A great book to read is The Five Ages of the Universe by Fred C. Adams
and Greg Laughlin. Completely engrossing, but kind of a bummer, if you plan on
living a google years.
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Message has 1 Reply:
 | | Re: Black Holes
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| (...) Hate to be a bummer, but the only matter black holes "emit" would be Hawking Radiation, and scientists are unsure about what will happen when a black hole stops. X-ray are a type of light, and since, by definition, black holes don't emit (...) (21 years ago, 15-Aug-03, to lugnet.off-topic.geek, FTX)
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Message is in Reply To:
| | Re: Black Holes
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| "Stefan Garcia" <sastrei@netscape.net> wrote in message news:HJGJrG.1BC9@lugnet.com... (...) So (...) can (...) like the (...) the (...) Your infinitely small pinpoint sounds about right. The "border" of a black hole is defined as the even horizon, (...) (21 years ago, 11-Aug-03, to lugnet.off-topic.geek)
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