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New theory links neutrino's slight mass to accelerating universe expansion
University of Washington News Office ^ | 27 July 2004 | Vince Stricherz

Posted on 07/27/2004 12:34:34 PM PDT by PatrickHenry

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To: djf

Had to read your post a couple of times to absorb that concept. Interesting, but I don't understand how empty space has toplogy to begin with.


41 posted on 07/28/2004 12:24:48 AM PDT by tjg
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To: tjg

Topology is, first and foremost, the study of space(s), and how they can be mapped one to one. Whether they are open/closed, bounded/unbounded, compact/complex.


42 posted on 07/28/2004 8:21:56 AM PDT by djf
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To: PatrickHenry
"Anyone who wants to glance at the title and then post the usual stuff like: 1. Bush did it. 2. Daschle is deeply sadened. 3. It's only a theory. 4. Some full-screen Star Trek pic. 5. Etc. is certainly free to do so, but please address your posts to someone other than me."

Is it alright for me to say: 'The West must do somthing about it....'?

43 posted on 07/28/2004 2:07:53 PM PDT by Irish_Thatcherite (<sarcasm>How could a man as fat as Micheal Moore, be so full of s****</sarcasm>)
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To: djf; tjg
Topology is, first and foremost, the study of space(s),

As opposed to the subject studied in school, a topology is a structure imputed to a lattice (such as the Boolean lattice of sets ordered by inclusion).

To have a topology,therefore, one has to have a set of alements first, and that is what question was about.

Indeed, if space is empty, it cannot have a nontrivial topology.

44 posted on 07/28/2004 3:16:21 PM PDT by TopQuark
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To: Cronos

Most of us, quarks, are strange...


45 posted on 07/28/2004 3:17:04 PM PDT by TopQuark
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To: Doctor Stochastic
Neutrinos have mass. Clams have legs.

Mussels have beards.

46 posted on 07/28/2004 3:24:24 PM PDT by StriperSniper ("Ronald Reagan, the Founding Father of the Vast Right-Wing Conspiracy." - Mark Levin 6/8/04)
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To: TopQuark

Thanks for explaining it. Even though I got an A, you explained it much better than my college professor did.


47 posted on 07/28/2004 4:50:09 PM PDT by djf
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To: Cronos
What about the Strange Quark?

Oh, that one. We neutrinos don't discuss them much; they're a tad too eccentric, even for us.

I will tell you that they're really not particularly welcome among decent particles, as you can see from the diagram below.


48 posted on 07/28/2004 5:36:13 PM PDT by neutrino (Hermes: God of trade and thieves.)
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To: neutrino
Not "particularly" welcome? (har)

By the way, I don't see what's so odd about that omega character. Looks alot like a regular old antiproton to me (about the right mass and charge), but then, I'm not familiar with all these characters.

49 posted on 07/28/2004 5:47:19 PM PDT by inquest (Judges are given the power to decide cases, not to decide law)
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To: TopQuark
"alements"

What is that?

50 posted on 07/28/2004 6:19:54 PM PDT by tjg
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To: longshadow

Lethargic thread placemarker.


51 posted on 07/28/2004 6:41:14 PM PDT by PatrickHenry (Since 28 Oct 1999, #26,303, over 191 threads posted, and somehow never suspended.)
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To: djf
You are most welcome.

Please don't let my remark stop you from entertaining provocative ideas: rigor is important only after you have a vision. And yours has a ring to it...

52 posted on 07/29/2004 2:44:01 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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To: Lazamataz

Welcome to the science threads. Nice debut.


54 posted on 07/29/2004 4:07:45 PM PDT by PatrickHenry (Since 28 Oct 1999, #26,303, over 191 threads posted, and somehow never suspended.)
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To: Cronos
Some other "invented" particles:

Neutrino: Probably the most famous of all invented particles, Pauli came up with this so as to explain beta decay in a manner consistent with the conservation of energy

Omega-Minus: When Gell-Mann developed the eight-fold way model to classify particles, he predicted the existence of this particle, much the same way Mendeleev predicted new elements when he created the periodic table. Its discovery shortly afterwards helped to cement the eight-fold way as the classification system for elementary particles.

Pi-meson: Yuakawa explained how the atom was held together by "inventing" this particle, which carries the strong force between protons and neutrons. It was shortly afterwards discovered by Powell and his team.

55 posted on 07/29/2004 9:54:26 PM PDT by RightWingAtheist (<A HREF=http://www.michaelmoore.com>stupid blob</A>)
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To: tjg

Oh, you know, rye, barley, sometimes ginger :-)


56 posted on 07/29/2004 9:56:42 PM PDT by RightWingAtheist (<A HREF=http://www.michaelmoore.com>stupid blob</A>)
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