Minnesota researcher's findings on dark matter jibe with Italy's DAMA/LIBRA claims
May 5, 2011 by Bob Yirka
(PhysOrg.com) -- Sparking controversy in the small circle of physicists working to resolve the issue of whether dark matter actually exists, Juan Collar, spokesman for the CoGeNT project in the Soudan mine in Minnesota, spoke recently at the American Physical Society meeting and disclosed that his team has found results similar to those experienced by the DAMA/LIBRA team in Italy over the past several years, which show an excess of low energy interactions in their germanium crystal detectors, that his group cant explain any other way but to ascribe it to the existence of dark matter.
The DAMA/LIBRA team has insisted for 12 years that the data it has found with its detectors backs up the theory that not only does dark matter exist, but that it can be shown to exist by seasonal changes in the amount of recoil hitting in their germanium detectors. The idea is that because the Earth moves and supposed clouds of dark matter dont, there should be times of higher activity when the Earth is moving into or through an area of dense dark matter, and lower activity when its not. This is the basis of the argument the DAMA/LIBRA team has had to explain the seasonal changes in the number of hits they see.
The problem with all this though is that there are other teams that have not been able to reproduce the results shown first by the DAMA/LIBRA team, and now by those with the CoGeNT team (most notably the Swiss XENON100 team.) Making the whole argument even more sensational is that the CoGeNT team actually set out to prove to the world that the DAMA/LIBRA team was wrong.
All of the teams are working to prove or disprove the notion that theoretical particles of dark matter, called WIMPS, exist and thus can be used, or not to back up or refute many other theories that serve to explain many of the unexplained phenomena that exist in the universe; such as what holds everything together. Some theories suggest that if dark matter does truly exist, it likely makes up eighty percent of everything there is; if it doesnt however, a lot of physicists will be going back to the drawing board.
One thing is certain however, and that is much more research will have to be done, both by those that are seeing results and those that arent, before anyone can even come close to claiming they understand the invisible forces that make the universe what it is.
© 2010 PhysOrg.com
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May 05, 2011
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http://www.johnwm...lk09.pdf
May 05, 2011
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May 05, 2011
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See:http://www.space....zle.html
May 05, 2011
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"An important property of all dark matter is that it behaves like and is modeled like a perfect fluid, meaning that it does not have any internal resistance or viscosity.[64] This means that dark matter particles should not interact with each other (except through gravity), i.e. they move past each other without ever bumping or colliding."
"The largest part of dark matter, which does not interact with electromagnetic radiation, is not only "dark" but also, by definition, utterly transparent.[4]"
A better name would be "Magic Matter" as it magically makes many astrophysical models work.
May 05, 2011
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May 05, 2011
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http://www.physor...660.html
May 05, 2011
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Movement is a relative term. You can't say something in space "doesn't move" unless you lock it into some other object and say "it doesn't move relative to that object".
Uh oh! Get ready for the "eather" kooks to use this to support their various aether theories.
May 05, 2011
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Strangely this sounds like the dark side of the force. Eerily reminiscent of various descriptions in books of ghosts or demons - take your pick.
Now, who would have believed that hard-headed scientists would one day come up with stories about spirits messing about with their experiments? That's what the dark matter basically boils down to doesn't it? Any which way you look at it ;-))))
May 05, 2011
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May 05, 2011
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OK, sorry i couldn't help it. I know you'll all try to blam me for trying to be funny, but whatever.
May 06, 2011
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May 06, 2011
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I have always wondered if one day we would come to a point where science and magic were one and the same. -- don't skip the rest -- I look at the more complex physics and it is incredible, just taking the collapse of posistioning of particles due to superposition -- it is a fact that until an object is directly observed that it can seriously be in more than one position... when we develop the ability to abstract that into we can chose where a particles postition will collapse into that will truely be science - but won't it be magical?
Indeed optical cloaking of reds has been created with the hope of a full human visible spectrum optical cloak in the works... These are no longer childrens tales and bedtime stories -- more often than not advancements today are not mimicing scifi books of the 60's but the powers of wizards in fairy tales.
teleportation, omniscient observance ( via satelite), just waiting on fireballs ;-)