Naked Science Forum
Non Life Sciences => Physics, Astronomy & Cosmology => Topic started by: RyanGuyardo on 23/07/2008 17:19:17
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Black hole's gravity is so strong that even light cannot escape from it.
[:)] What if we keep on pointing lights at it or filling it up with objects, can it be seen eventually?
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Nice question - although a "black hole" would seem to increase mass without limit and so prevent "even light" - it circles the event horizon I guess. But is there a limit like a new baby universe?
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There is no evidence to suggest that there is any reason for a black hole to be limited in size.
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Evidence? Please explain this "evidence"
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There is nothing in GR that states there is an upper limit and so far there has been nothing in research to suggest that GR is wrong in this respect. I think that is what SoulSurfer is referring to.
Admittedly, we don't know what physics applies inside the BH. We do know that QM goes a bit awry and that a more comprehensive theory of gravity is required to understand them better.
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Evidence? Please explain this "evidence"
Huh? No evidence was mentioned.
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Nothing can escape a black hole because information can neverleave its surface. The reason for this lack of transmission is because of the gravity, but I thing it is also because the time on the surface of a black hole is nearly stopped. A good book to read on this would probably be The Universe in a Nutshell, by Stephen Hawkins.