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February 20, 2009 06:29 PM
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Both are only called "theories" for a reason so take anything you hear on either with a small grain of salt.
I recently finished a book on superstring theory that touched on relativity and the big bang. From my understanding general relativity is "wrong" when it comes to very small objects . . . as would be found at the time of the big bang. The book I was reading explained how string theory's goal is to reconcile the inherent conflict between general relativity and quantum mechanics. If you believe that string theory is correct and therefore modify slightly your understanding of relativity then there is additional support for the big bang theory.
In other words they don't necessarily need to be in competition with each other.
Source(s):
"The Elegant Universe" by Brian Greene
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When it comes to reliability, it's the Big Bang Theory that relies on General Relativity, for it's soundness, and not the other way around as your question suggests.
The Bang Bang Theory is an attempt to come up with a Cosmology that's consistent with General Theory of Relativity. If General Relativity turns out to be incomplete, or even completely wrong, which is not very likely, then the Big Bang will have to be adjusted as well, in order to bring it back in line with any such new findings.
Source(s):
http://map.gsfc.nasa.gov/universe/bb_theory.html
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Hubble found that galaxies are actually accelerating away from each other instead of decelerating as would be the case with the Big Crunch.
Also with the discovery of Dark Matter and Dark Energy came an explanation to why the galaxies are accelerating away from each other. It also looks like this will continue into infinity. Where eventually things will be so spread apart that everything would be frozen, hence the Big Freeze.
We still don't know enough about Dark Energy or Dark matter to say for certain, but this is the accepted theory at this time.
I think this is what you are asking, if not sorry.
Source(s):
http://en.wikipedia.org/wiki/Big_Crunch
http://skyserver.sdss.org/dr1/en/astro/universe/universe.asp
http://www.astro.ucla.edu/~wright/cosmology_faq.html#MX
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How reliable is the theory of universal relativity in comparison to the big bang theory?
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| February 20, 2009 08:54 PM |
I recently finished a book on superstring theory that touched on relativity and the big bang. From my understanding general relativity is "wrong" when it comes to very small objects . . . as would be found at the time of the big bang. The book I was reading explained how string theory's goal is to reconcile the inherent conflict between general relativity and quantum mechanics. If you believe that string theory is correct and therefore modify slightly your understanding of relativity then there is additional support for the big bang theory.
In other words they don't necessarily need to be in competition with each other.
Source(s):
"The Elegant Universe" by Brian Greene
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Other Answers (3)
February 20, 2009 11:38 PM
Firstly, it's General Theory of Relativity, not a universal one. There is actually no such a thing as "theory of universal relativity". When it comes to reliability, it's the Big Bang Theory that relies on General Relativity, for it's soundness, and not the other way around as your question suggests.
The Bang Bang Theory is an attempt to come up with a Cosmology that's consistent with General Theory of Relativity. If General Relativity turns out to be incomplete, or even completely wrong, which is not very likely, then the Big Bang will have to be adjusted as well, in order to bring it back in line with any such new findings.
Source(s):
http://map.gsfc.nasa.gov/universe/bb_theory.html
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February 21, 2009 11:34 PM
By theory of universal relativity, I mean the idea that the universe is shrinking, instead of expanding as the big bang theory suggests.
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February 24, 2009 04:01 PM
I don't think you got my answer right.
The universal theory of relativity you're asking about IS NOT a scientific theory. It is a one man's idea, a concept developed to aim Science Fiction writers in their efforts to produce better stories.
The man is one Roland Michel Tremblay, and here is what he says about universal theory of relativity:
"If you are new to the concepts of relativity, super strings and quantum mechanics, please bear in mind that these are my own theories, they do not reflect what is said today in science."
By "these" he means universal relativity, shrinking universe, and other concepts that he developed.
He does have some scientific background, but acts mainly as technical consultant, TV producer, publisher, etc... Roland Michel Tremblay is not, and does not pretend to be, a scientist.
In conclusion, the universal theory of relativity compares to Big Bang very much like Tolkin's world of elves and goblins compares to Darwin's theory of evolution and natural selection.
If you're interested in challenging new theories, you really ought to check out one Garrett Lisi - a Surfer Dude who Stunned the World of Science With the 'Theory of Everything'!
universal theory of relativity:
http://www.crownedanarchist.com/Shrinking.htm
Roland Michel Tremblay:
http://www.crownedanarchist.com/wg/tremblay/index.htm
http://en.wikipedia.org/wiki/Roland_Michel_Tremblay
Garrett Lisi: How a Surfer Dude Stunned the World of Science With the 'Theory of Everything'
http://www.dailygalaxy.com/my_weblog/2007/11/how-a-surfer--1.html
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The universal theory of relativity you're asking about IS NOT a scientific theory. It is a one man's idea, a concept developed to aim Science Fiction writers in their efforts to produce better stories.
The man is one Roland Michel Tremblay, and here is what he says about universal theory of relativity:
"If you are new to the concepts of relativity, super strings and quantum mechanics, please bear in mind that these are my own theories, they do not reflect what is said today in science."
By "these" he means universal relativity, shrinking universe, and other concepts that he developed.
He does have some scientific background, but acts mainly as technical consultant, TV producer, publisher, etc... Roland Michel Tremblay is not, and does not pretend to be, a scientist.
In conclusion, the universal theory of relativity compares to Big Bang very much like Tolkin's world of elves and goblins compares to Darwin's theory of evolution and natural selection.
If you're interested in challenging new theories, you really ought to check out one Garrett Lisi - a Surfer Dude who Stunned the World of Science With the 'Theory of Everything'!
universal theory of relativity:
http://www.crownedanarchist.com/Shrinking.htm
Roland Michel Tremblay:
http://www.crownedanarchist.com/wg/tremblay/index.htm
http://en.wikipedia.org/wiki/Roland_Michel_Tremblay
Garrett Lisi: How a Surfer Dude Stunned the World of Science With the 'Theory of Everything'
http://www.dailygalaxy.com/my_weblog/2007/11/how-a-surfer--1.html
February 21, 2009 07:15 AM
Calculations which "show" the existence of "dark energy" shows that something is wrong with our knowledge of the universe. Either there exists energy in the universe in a form we don't understand, or there is something wrong with the theory of general relativity.
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February 23, 2009 04:49 AM
If you are talking about the difference between the "Big Crunch" and the "Big Freeze" then so far the Big Freeze is the leading theory. Hubble found that galaxies are actually accelerating away from each other instead of decelerating as would be the case with the Big Crunch.
Also with the discovery of Dark Matter and Dark Energy came an explanation to why the galaxies are accelerating away from each other. It also looks like this will continue into infinity. Where eventually things will be so spread apart that everything would be frozen, hence the Big Freeze.
We still don't know enough about Dark Energy or Dark matter to say for certain, but this is the accepted theory at this time.
I think this is what you are asking, if not sorry.
Source(s):
http://en.wikipedia.org/wiki/Big_Crunch
http://skyserver.sdss.org/dr1/en/astro/universe/universe.asp
http://www.astro.ucla.edu/~wright/cosmology_faq.html#MX
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Regards,
Roland Michel Tremblay
http://www.themarginal.com/finaltheory.htm