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 Posted: Wed May 24, 2006 9:10 am
k...like... what is the deal with black holes? I mean do all laws of physics just fall apart? is there somewhere where physics does not reign supreme? *gasp *feint no it canont be!!!!
I was explained that according to GTR a large enough dent in the fabric of spacetime could cause a black hole (it did not have a rip, though a rip would be an interesting space warp) how large are we talking about? Is this in conjunction with the Chandreshakar limit? How big is the dent with the mass of a star which has surpassed th eChandreshakar limit (try saying that three times fast!)... is this mathematically unfeasible for me to understand?
Then again as I was explained accordin to QM the graviton surpasses the photon? like... what? is the graviton travelling faster than the photon???? what does it all mean? why am I melting? my mind cannot comprehend... I'm meeeeeellllttttttttiiiiiinnnnnngggg........nooooooooooo.
so yah... discuss *dramatic voice BLACK HOLES.
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Posted: Thu May 25, 2006 4:27 am
The graviton is a bit hypothetical isn't it?
Yeah, it's a singularity so things kinda start breaking down there.
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Posted: Thu May 25, 2006 7:06 am
What is the Chandreshakar limit? It's not something I'm familiar with.
And the grammar in your post is nearly causing me something almost akin to physical pain.
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Posted: Thu May 25, 2006 9:27 am
Dave the lost What is the Chandreshakar limit? It's not something I'm familiar with. And the grammar in your post is nearly causing me something almost akin to physical pain. so sorry about the grammer... The Chandreshakar limit is the mass a sun needs to have to become a black hole. If the star is more massive than the Chandreshakar limit it will surely become a black hole, if it is less then it wont. It was calculated by an Indian student on a train to England and it was named after him.
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Posted: Thu May 25, 2006 11:50 am
The Chandreshakar limit sets the upper bound on the mass of a white dwarf.
The graviton is hypothetical: there is no verified quantum theory of gravity, the best we have is GTR.
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Posted: Thu May 25, 2006 1:14 pm
A Lost Iguana The Chandreshakar limit sets the upper bound on the mass of a white dwarf. The graviton is hypothetical: there is no verified quantum theory of gravity, the best we have is GTR. if the graviton was somehow detected, I know some students at U of T in the engineering science program are working on this, then what would that mean for QM and GTR?
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Posted: Thu May 25, 2006 5:29 pm
If after the supernova, the stellar corpse has approximately two and half solar masses remaining, it will overcome degenerate neutron pressure and collapse into a black hole. That is, if I remember correctly. I certainly don't know the mathematics behind it.
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Posted: Thu May 25, 2006 6:54 pm
poweroutage if the graviton was somehow detected, I know some students at U of T in the engineering science program are working on this, then what would that mean for QM and GTR? Honestly? No bloody clue. I expect that GTR would be in trouble but I am not that well versed, the implications in that area would be better answered by Vorpal. It would be very useful for quantum gravity theorists: data constrains models.
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Posted: Thu May 25, 2006 9:52 pm
A Lost Iguana poweroutage if the graviton was somehow detected, I know some students at U of T in the engineering science program are working on this, then what would that mean for QM and GTR? Honestly? No bloody clue. I expect that GTR would be in trouble but I am not that well versed, the implications in that area would be better answered by Vorpal. It would be very useful for quantum gravity theorists: data constrains models. so it's an all or nothing? QM or GTR? but... if QM can't answer gravity then isn't it in trouble? and if GTR is falsfied then haven't we lost something very important?
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Posted: Thu May 25, 2006 9:53 pm
Cynthia_Rosenweiss If after the supernova, the stellar corpse has approximately two and half solar masses remaining, it will overcome degenerate neutron pressure and collapse into a black hole. That is, if I remember correctly. I certainly don't know the mathematics behind it. two and a half solar masses? what would that be?
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Posted: Thu May 25, 2006 10:48 pm
poweroutage Cynthia_Rosenweiss If after the supernova, the stellar corpse has approximately two and half solar masses remaining, it will overcome degenerate neutron pressure and collapse into a black hole. That is, if I remember correctly. I certainly don't know the mathematics behind it. two and a half solar masses? what would that be? The Sun is 1 solar mass.
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Posted: Fri May 26, 2006 12:40 am
[ Message temporarily off-line ]
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Posted: Fri May 26, 2006 1:23 am
[ Message temporarily off-line ]
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Posted: Fri May 26, 2006 1:13 pm
poweroutage k...like... what is the deal with black holes? I mean do all laws of physics just fall apart? is there somewhere where physics does not reign supreme? *gasp *feint no it canont be!!!! I was explained that according to GTR a large enough dent in the fabric of spacetime could cause a black hole (it did not have a rip, though a rip would be an interesting space warp) how large are we talking about? Is this in conjunction with the Chandreshakar limit? How big is the dent with the mass of a star which has surpassed th eChandreshakar limit (try saying that three times fast!)... is this mathematically unfeasible for me to understand? Then again as I was explained accordin to QM the graviton surpasses the photon? like... what? is the graviton travelling faster than the photon???? what does it all mean? why am I melting? my mind cannot comprehend... I'm meeeeeellllttttttttiiiiiinnnnnngggg........nooooooooooo. so yah... discuss *dramatic voice BLACK HOLES.
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Posted: Fri May 26, 2006 2:33 pm
QuinnBW poweroutage k...like... what is the deal with black holes? I mean do all laws of physics just fall apart? is there somewhere where physics does not reign supreme? *gasp *feint no it canont be!!!! I was explained that according to GTR a large enough dent in the fabric of spacetime could cause a black hole (it did not have a rip, though a rip would be an interesting space warp) how large are we talking about? Is this in conjunction with the Chandreshakar limit? How big is the dent with the mass of a star which has surpassed th eChandreshakar limit (try saying that three times fast!)... is this mathematically unfeasible for me to understand? Then again as I was explained accordin to QM the graviton surpasses the photon? like... what? is the graviton travelling faster than the photon???? what does it all mean? why am I melting? my mind cannot comprehend... I'm meeeeeellllttttttttiiiiiinnnnnngggg........nooooooooooo. so yah... discuss *dramatic voice BLACK HOLES. If physics are the laws and rules of the universe then it stands to reason that some where they do not apply. A rule can not be a rule if it dose not have an exception I do not see your logic there... a rule must apply everywhere, otherwise it's not a law. we're not talking humans, we're talking inanimate objects, they cannot 'choose' to break the rules like we do. if it doens't apply everywhere, then our theory is incomplete and we're missing part of the picture.
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