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Did our cosmos exist before the big bang?
New Scientist ^ | 12/10/08 | Anil Ananthaswamy

Posted on 12/12/2008 3:08:09 PM PST by LibWhacker

ABHAY ASHTEKAR remembers his reaction the first time he saw the universe bounce. "I was taken aback," he says. He was watching a simulation of the universe rewind towards the big bang. Mostly the universe behaved as expected, becoming smaller and denser as the galaxies converged. But then, instead of reaching the big bang "singularity", the universe bounced and started expanding again. What on earth was happening?

Ashtekar wanted to be sure of what he was seeing, so he asked his colleagues to sit on the result for six months before publishing it in 2006. And no wonder. The theory that the recycled universe was based on, called loop quantum cosmology (LQC), had managed to illuminate the very birth of the universe - something even Einstein's general theory of relativity fails to do.

LQC has been tantalising physicists since 2003 with the idea that our universe could conceivably have emerged from the collapse of a previous universe. Now the theory is poised to make predictions we can actually test. If they are verified, the big bang will give way to a big bounce and we will finally know the quantum structure of space-time. Instead of a universe that emerged from a point of infinite density, we will have one that recycles, possibly through an eternal series of expansions and contractions, with no beginning and no end.

(Excerpt) Read more at newscientist.com ...


TOPICS: Astronomy; Science
KEYWORDS: anilananthaswamy; bigbang; cosmology; cosmos; gravity; loop; quantum; stringtheory

1 posted on 12/12/2008 3:08:09 PM PST by LibWhacker
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To: LibWhacker

WHAT “big bang”??


2 posted on 12/12/2008 3:09:11 PM PST by wendy1946
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To: LibWhacker
the theory is poised to make predictions we can actually test.

Just wait. 5 trillion years. You'll see.

3 posted on 12/12/2008 3:10:22 PM PST by RightWhale (We were so young two years ago and the DJIA was 12,000)
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To: LibWhacker

This makes my head hurt.


4 posted on 12/12/2008 3:12:34 PM PST by miliantnutcase
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To: LibWhacker

First this thread with MILF and Bangsomora ......and now, the *Big Bang*??

Gutter Minds

http://www.freerepublic.com/focus/f-news/2147866/posts


5 posted on 12/12/2008 3:13:09 PM PST by wolfcreek (I see miles and miles of Texas....let's keep it that way.)
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To: SunkenCiv

May be of interest.


6 posted on 12/12/2008 3:13:45 PM PST by KoRn
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To: LibWhacker
..and Multivac thought and thought about "the last question"!

Finally the answer came to him and he said:

"Let there be light!!!!"

7 posted on 12/12/2008 3:16:32 PM PST by Young Werther (Julius Caesar (Quae Cum Ita Sunt. Since these things are so.))
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To: wendy1946

my thought exactly what big bang!


8 posted on 12/12/2008 3:18:23 PM PST by remaxagnt
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To: LibWhacker

My girlfriend is being nice to me tonight and tells me it just seemed like the universe didn’t exist before the big bang.


9 posted on 12/12/2008 3:21:54 PM PST by cripplecreek (The poor bastards have us surrounded.)
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To: LibWhacker

So, instead of a “big bang” it’s a “big BOING”


10 posted on 12/12/2008 3:36:52 PM PST by JRios1968 (Sarah Palin is what Willis was talkin' about!)
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To: remaxagnt; wendy1946
> my thought exactly, what big bang!

Perhaps the one that followed right after:

And God said, "Let there be..." ???

Just sayin', that's one way to look at it.

11 posted on 12/12/2008 3:42:38 PM PST by dayglored (Listen, strange women lying in ponds distributing swords is no basis for a system of government!)
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To: Young Werther

An Asimov reference!


12 posted on 12/12/2008 3:43:04 PM PST by PasorBob
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To: LibWhacker
he theory that the recycled universe was based on, called loop quantum cosmology (LQC), had managed to illuminate the very birth of the universe

I wonder if this is related to Loop Quantum Gravity, a non-string based approach to quantum gravity?...Well, I looked it up, and yes it is.

13 posted on 12/12/2008 3:43:47 PM PST by TheWasteLand
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To: LibWhacker
I bet it existed before the Bigger bang!


14 posted on 12/12/2008 3:45:26 PM PST by Revolting cat! (Everytime they open their mouth they shoot themselves in the foot.)
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To: wendy1946
The "In the Beginning" part ~ that Big Bang.
15 posted on 12/12/2008 3:45:46 PM PST by muawiyah
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To: TheWasteLand
LQC is in fact the first tangible application of another theory called loop quantum gravity, which cunningly combines Einstein's theory of gravity with quantum mechanics.

D'oh! That's what I get for commenting before reading the article.

16 posted on 12/12/2008 3:47:56 PM PST by TheWasteLand
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To: PasorBob
Funny you should mention it!


17 posted on 12/12/2008 3:49:01 PM PST by Young Werther (Julius Caesar (Quae Cum Ita Sunt. Since these things are so.))
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To: muawiyah
> The "In the Beginning" part ~ that Big Bang.

I've always liked the idea that the scientific theory of the Big Bang, and God's words, "Let there be light", were harmonious, possibly even synonymous.

Just IMO, of course...

18 posted on 12/12/2008 3:49:56 PM PST by dayglored (Listen, strange women lying in ponds distributing swords is no basis for a system of government!)
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To: LibWhacker

As soon as I can find a big enough power supply for my time machine, I'll check it out and let you know.

19 posted on 12/12/2008 4:11:07 PM PST by smokingfrog (I'll go green when they plant me in the ground.)
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To: Young Werther

I always liked that story.


20 posted on 12/12/2008 4:15:24 PM PST by pdunkin (I feel more like I do now than I did this morning.)
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To: LibWhacker

Duh - friggin idiots


21 posted on 12/12/2008 4:22:14 PM PST by Williams (It's The Policies, Stupid.)
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To: LibWhacker

Well, logically, if the scriptures are right and “in Him we live and move and have our very being” and “He is the Alpha and the Omega”, then any sort of “carbon dating” will show basically - infinity of all matter since everything is a part of Him or created by Him using ancient matter to create things with. (We never gonna figger it out just right cause there are things above our finite minds.)


22 posted on 12/12/2008 4:29:11 PM PST by Twinkie (TWO WRONGS DON'T MAKE A RIGHT!!!)
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To: KoRn; AdmSmith; bvw; callisto; ckilmer; dandelion; ganeshpuri89; gobucks; KevinDavis; ...
Thanks KoRn.

before the big bang site:freerepublic.com
Google

23 posted on 12/12/2008 4:38:52 PM PST by SunkenCiv (https://secure.freerepublic.com/donate/_______Profile finally updated Saturday, December 6, 2008 !!!)
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To: LibWhacker

The Universe as a perpetual motion machine.


24 posted on 12/12/2008 4:43:54 PM PST by allmendream (Wealth is EARNED not distributed.... so how could it be Redistributed?)
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To: RightWhale
Just wait. 5 trillion years. You'll see.

Exactly...

...the theory is poised to make predictions we can actually test.

Instead of a universe that emerged from a point of infinite density, we will have one that recycles, possibly through an eternal series of expansions and contractions, with no beginning and no end.

No doubt measurable too.

Sheesh, what a farce!

25 posted on 12/12/2008 4:51:08 PM PST by tpanther (The only thing necessary for the triumph of evil is for good men to do nothing---Edmund Burke)
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To: LibWhacker

Old, old, old news. This was being discussed over 25 years ago in an astronomy class I took.


26 posted on 12/12/2008 5:27:42 PM PST by Kirkwood
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To: LibWhacker
something about matter cannot be created nor destroyed...
27 posted on 12/12/2008 5:46:28 PM PST by Chode (American Hedonist -)
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To: Kirkwood

You left out the word billion between 25 and years. =) j/k


28 posted on 12/12/2008 6:37:44 PM PST by Redcitizen (This is an invisible tagline)
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To: LibWhacker
...with no beginning and no end.

how convenient

29 posted on 12/12/2008 11:26:47 PM PST by csense
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To: LibWhacker
Cosmologists are still very much in the dark about dark energy.
Dark energy: a matter dark, indeed.
30 posted on 12/13/2008 5:49:41 AM PST by samtheman
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To: Kirkwood
It goes back even further. I first heard about it in the 60s. At the time, a philosopher friend told me that Nietzsche had come up with the idea, but it turns out it goes back much further than that even: http://en.wikipedia.org/wiki/Eternal_return. The difference, of course, is that Ashtekar, Bojowald, et al. have taken the physics further than anyone ever has.
31 posted on 12/13/2008 8:31:10 AM PST by LibWhacker
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To: LibWhacker

Well, God did.


32 posted on 12/13/2008 12:00:43 PM PST by onedoug
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To: Young Werther

Such sturm und drang from young Werther!


33 posted on 12/14/2008 2:37:21 AM PST by PasorBob
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To: LibWhacker
From 1960:


34 posted on 12/14/2008 2:43:54 AM PST by js1138
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