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Neutrinos, dark energy, cosmological expansion, and the fate of the universe, all in one thread.
1 posted on 07/27/2004 12:34:37 PM PDT by PatrickHenry
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To: VadeRetro; jennyp; Junior; longshadow; RadioAstronomer; Physicist; LogicWings; Doctor Stochastic; ..
Science list Ping! This is an elite subset of the Evolution list.
See the list's description in my freeper homepage. Then FReepmail me to be added or dropped.
2 posted on 07/27/2004 12:37:19 PM PDT by PatrickHenry (Here since 28 Oct 1999, #26,303, over 191 threads posted, and somehow never suspended.)
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To: PatrickHenry
But did they consider the coefficient of gravity?
3 posted on 07/27/2004 12:38:05 PM PDT by TexasCajun
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To: PatrickHenry

Aha!

I knew it!


4 posted on 07/27/2004 12:40:34 PM PDT by BenLurkin ("A republic, if we can revive it")
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To: PatrickHenry

Damn the neutrinos, full speed ahead!


6 posted on 07/27/2004 12:57:59 PM PDT by searchandrecovery (Socialist America - diseased and dysfunctional.)
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To: PatrickHenry
Neutrinos, dark energy, cosmological expansion, and the fate of the universe, all in one thread.

I know. Very cool. I'm not going to be able to stand up for the next ten minutes.
7 posted on 07/27/2004 1:01:45 PM PDT by BikerNYC
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To: fooman

Interesting ping.


9 posted on 07/27/2004 1:08:56 PM PDT by Mycroft Holmes (Fnord!)
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To: PatrickHenry

BTTT.


10 posted on 07/27/2004 1:10:49 PM PDT by Constitution Day
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To: PatrickHenry
OK, this is it. I'm lost. Really lost.
12 posted on 07/27/2004 1:14:38 PM PDT by VadeRetro
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To: PatrickHenry

Here is an email I wrote on May 28 of this year:



Hey,

OK, about ten years ago, I had fantasies that I was a good cosmological theorist, with deep, penetrating understanding of the cosmos.

So I mucked around with the standard universal constants and plain old physical models and derived the following equation:

Mu = (8 Pi/3)(C cubed Tu/G)

where Mu is the mass of the universe, Tu is the age, C is the speed of light, and G is the universal constant of gravitation.

I even wrote it on a slip of paper and hung it over my desk at work hoping, I don't know, maybe people would bow when they passed me or something.


So, the other night, I'm reading a short treatise, and Lo! and Behold! and whatever else, here it comes, on page 2:

a = CTu = 2GMu / C squared !!!!!! (1)

Yay!!

Not that it's all that important, but what it means is: The mass of the universe is growing linearly with the time, but the volume is growing as the cube of the time, so the density is falling as the square of the time. It basically means it's getting bigger and fatter but in a weird way, kind of evaporating.

But don't start packing yur bags or getting your knickers in a knot, it will take trillions of years.

So I'm writing this note to brag a little, after all, I beat them stupid russkies by six years, and they even forgot the right coefficient to determine the volume of a sphere!
Too much vodka, I guess.


References
(1) Dimensionless constants of the fundamental physical interactions viewed by the model of expansive nondecelerative universe
Sima, Sukenik, Sukenikova
Slovak Technical University, Bratislava, Slovakia 1999

http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1991Ap%26SS.178..169S
http://xxx.arxiv.cornell.edu/abs/gr-qc/9910094


14 posted on 07/27/2004 1:21:00 PM PDT by djf
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To: PatrickHenry
These articles drive me nuts sometimes:

Now three University of Washington physicists are suggesting the two discoveries are integrally linked through one of the strangest features of the universe, dark energy, a linkage they say could be caused by a previously unrecognized subatomic particle they call the "acceleron."

Dark energy was negligible in the early universe, but now it accounts for about 70 percent of the cosmos.

And that's the only introduction it gives us to "dark energy". Nothing about what it actually is or believed to be, only the fact that there's a lot more of it now than in the old days. As if that helps elucidate anything.

And 70% by what standard of measurement? Volume? Weight? Mojo? I just wish they'd throw us a bone once in awhile.

20 posted on 07/27/2004 2:10:12 PM PDT by inquest (Judges are given the power to decide cases, not to decide law)
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To: PatrickHenry

Nutrino! This isn't your mothers ether!


21 posted on 07/27/2004 2:13:05 PM PDT by RobRoy (You only "know" what you experience. Everything else is mere belief.)
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To: PatrickHenry
"The universe could continue to expand, but at an ever-decreasing rate."

So the big crunch could occur eventually afterall. Just further out in time than some have imagined.

25 posted on 07/27/2004 2:29:12 PM PDT by facedown (Armed in the Heartland)
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To: PatrickHenry

btt


37 posted on 07/27/2004 8:41:50 PM PDT by Cacique
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To: PatrickHenry
a linkage they say could be caused by a previously unrecognized subatomic particle

When in doubt, introduce a new particle. That's how I myself was invented.

38 posted on 07/27/2004 9:11:30 PM PDT by TopQuark
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To: PatrickHenry
Two of the biggest physics breakthroughs during the last decade are the discovery that wispy subatomic particles called neutrinos actually have a small amount of mass and the detection that the expansion of the universe is actually picking up speed.

We're all gonna die because of the entropic heat-death of the universe represented, in a macroscopic sense, by (delta)S = Q/T where Q is heat added to a thermodynamic system during a reversible process at absolute temperature T !!!!

53 posted on 07/29/2004 3:01:41 PM PDT by Lazamataz ("Stay well - Stay safe - Stay armed - Yorktown" -- harpseal)
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