Democratic Underground Latest Greatest Lobby Journals Search Options Help Login
Google

Dark Fluid: Dark Matter And Dark Energy May Be Two Faces Of Same Coin

Printer-friendly format Printer-friendly format
Printer-friendly format Email this thread to a friend
Printer-friendly format Bookmark this thread
This topic is archived.
Home » Discuss » Topic Forums » Science Donate to DU
 
n2doc Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Feb-01-08 10:44 AM
Original message
Dark Fluid: Dark Matter And Dark Energy May Be Two Faces Of Same Coin
ScienceDaily (Feb. 1, 2008) — Astronomers at the University of St Andrews believe they can "simplify the dark side of the universe" by shedding new light on two of its mysterious constituents.
S

Dr HongSheng Zhao, of the University's School of Physics and Astronomy, has shown that the puzzling dark matter and its counterpart dark energy may be more closely linked than was previously thought.
Only 4% of the universe is made of known material - the other 96% is traditionally labelled into two sectors, dark matter and dark energy.


A British astrophysicist and Advanced Fellow of the UK's Science and Technology Facilities Council, Dr Zhao points out, "Both dark matter and dark energy could be two faces of the same coin.

"As astronomers gain understanding of the subtle effects of dark energy in galaxies in the future, we will solve the mystery of astronomical dark matter at the same time. "

Astronomers believe that both the universe and galaxies are held together by the gravitational attraction of a huge amount of unseen material, first noted by the Swiss astronomer Fritz Zwicky in 1933, and now commonly referred to as dark matter.
Dr Zhao reports that, "Dark energy has already revealed its presence by masking as dark matter 60 years ago if we accept that dark matter and dark energy are linked phenomena that share a common origin."

In Dr Zhao's model, dark energy and dark matter are simply different manifestations of the same thing, which he has considered as a 'dark fluid'. On the scale of galaxies, this dark fluid behaves like matter and on the scale of the Universe overall as dark energy, driving the expansion of the Universe. Importantly, his model, unlike some similar work, is detailed enough to produce the same 3:1 ratio of dark energy to dark matter as is predicted by cosmologists.

more:
http://www.sciencedaily.com/releases/2008/01/080131094056.htm


The magnificent spiral arms of the nearby galaxy Messier 81. Astronomers believe that both the universe and galaxies are held together by the gravitational attraction of a huge amount of unseen material, now commonly referred to as dark matter. (Credit: NASA/JPL/Caltech/Harvard-Smithsonian Center for Astrophysics)

Printer Friendly | Permalink |  | Top
1620rock Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Feb-01-08 11:02 AM
Response to Original message
1. Fascinating, thanks for the post.
Printer Friendly | Permalink |  | Top
 
phantom power Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Feb-01-08 11:24 AM
Response to Original message
2. Dark fluid:
Printer Friendly | Permalink |  | Top
 
hunter Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Feb-01-08 12:10 PM
Response to Reply #2
3. The Universe is just a big vat of beer.
That would explain a lot.
Printer Friendly | Permalink |  | Top
 
phantom power Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Feb-01-08 12:33 PM
Response to Reply #3
4. I'm biased. The idea of living in a universe that is 96% beer appeals to me.
And think of the rousing wars we can fight over which beer it is!
Printer Friendly | Permalink |  | Top
 
Nihil Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Feb-01-08 07:46 PM
Response to Reply #4
5. Jeez .. religious wars would be trivial in comparison!
There again, maybe the phrase "Intoxicated by religion" is over-rated ...

"Green King forever!"
Printer Friendly | Permalink |  | Top
 
phantom power Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Feb-01-08 07:52 PM
Response to Reply #5
6. Apostate! Dogfish Head is the Eternal Beer of the Universe!
Or maybe Four Peaks. Fuck, it's all good. Why waste time fighting that can be spent drinking?
Printer Friendly | Permalink |  | Top
 
TheMadMonk Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Feb-02-08 05:14 AM
Response to Reply #6
7. Pour them all straight back into the horse. nt
Printer Friendly | Permalink |  | Top
 
Thor_MN Donating Member (1000+ posts) Send PM | Profile | Ignore Wed Feb-06-08 12:07 AM
Response to Original message
8. Ed = MdC^2 ???
I actually was thinking about this the other day. Why shouldn't there be a relationship between dark matter and dark energy? So let me be the first to say Ed=MdC^2 and tell me where to pick up my Nobel prize...
Printer Friendly | Permalink |  | Top
 
DU AdBot (1000+ posts) Click to send private message to this author Click to view 
this author's profile Click to add 
this author to your buddy list Click to add 
this author to your Ignore list Wed May 08th 2024, 05:10 PM
Response to Original message
Advertisements [?]
 Top

Home » Discuss » Topic Forums » Science Donate to DU

Powered by DCForum+ Version 1.1 Copyright 1997-2002 DCScripts.com
Software has been extensively modified by the DU administrators


Important Notices: By participating on this discussion board, visitors agree to abide by the rules outlined on our Rules page. Messages posted on the Democratic Underground Discussion Forums are the opinions of the individuals who post them, and do not necessarily represent the opinions of Democratic Underground, LLC.

Home  |  Discussion Forums  |  Journals |  Store  |  Donate

About DU  |  Contact Us  |  Privacy Policy

Got a message for Democratic Underground? Click here to send us a message.

© 2001 - 2011 Democratic Underground, LLC