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Fraser
2010-Mar-01, 12:40 PM
What better place to look for dark matter than down a mine shaft? A research team from the University of Florida have spent nine years monitoring for any signs of the elusive stuff using germanium and silicon detectors cooled down to a fraction of a degree above absolute zero. And the result? A couple of [...]

More... (http://www.universetoday.com/2010/03/01/what-can-the-dark-matter-be/)

Nick Theodorakis
2010-Mar-01, 01:16 PM
From the article:



Current thinking is that a small component of dark matter is baryonic, meaning stuff composed of protons and neutrons, which is in the form of cold gas and dense, non-radiant objects such black holes, neutron stars, brown dwarfs and orphaned planets (traditional known as Massive Astrophysical Compact Halo Objects or MACHOs).


Questions:

(1) Is it possible to know whether a black hole was made from baryonic or non-baryonic matter?

(2) When they rule out baryonic matter for most of the component of the missing mass, are they also ruling out "ordinary" non-baryonic matter such as electrons and neutrinos (or even non-baryonic hadrons)?

Nick

Professor Holland
2010-Mar-13, 07:33 AM
Dark Matter has a very simple explanation as to its function and reason to its existence.
Simply put, dark matter is the canvas upon which our very existence depends.The main 'skeletal' structure upon which matter which we understand it, is built upon.
For example, try painting a picture without a surface to place your materials upon.Dark matter 'existed' before the big bang.without dark matter we simply could not exist.Dark matter exists in an as yet an unexplainable form, but as it compares to 'nothing' then its existence before the big bang becomes more tennable, and oddly understandable.Technically, there was nothing before the universe started, and so dark matter to us , is nothing, so it was quite probably there.If there was nothing before the creation of the universe,great!, because dark matter is nothing anyway!What is a canvas, without a painting upon it???

cran
2010-Mar-13, 09:27 AM
I'm not sure the artist got those proportions quite right ...

Smimo
2010-Mar-13, 04:23 PM
If string theory is correct, and we have all these tiny, extra dimensions in space curled up all around us, could dark matter be hidden from us in these extra dimensions? As a follow-on question, when matter is compressed to form black holes, what happens to these extra dimensions in black hole land?

trinitree88
2010-Mar-16, 03:35 PM
If string theory is correct, and we have all these tiny, extra dimensions in space curled up all around us, could dark matter be hidden from us in these extra dimensions? As a follow-on question, when matter is compressed to form black holes, what happens to these extra dimensions in black hole land?

People throw in all the hanging chads that are flouncing around. Those are followed shortly by Ogopogo, Bigfoot, polywater, equants, equilibrants, epicycles, phlogiston, caloric, Sasquatch, Nessie, and maps of Lost River, Lost Lake, and Lost Mountain....not far from Charybdis.
If string theory is right it ought to be testable, which it is not, or it ought to make predictions which are testable, which it does not. One might continue to hunt for the 17 particles and their 17 anti-particles predicted by supersymmetry, while skimming rainbows' ends for pots-o-gold and Leprechauns, it being near St Pat's day. But, your energy is probably better directed towards something that actually exists. pete

SEE:http://viryacarvalho.files.wordpress.com/2009/04/ogopogo21.jpg http://sunwalked.files.wordpress.com/2009/07/big-foot-steve.jpg
See:http://images.google.com/imgres?imgurl=http://jejuneinstitute.org/images/1_polywater.jpg&imgrefurl=http://jejuneinstitute.org/polywater.htm&usg=__D6Vac4o-4dwQlPwkGhHDahD6BWU=&h=296&w=340&sz=13&hl=en&start=2&itbs=1&tbnid=_Ny4csNZvyg53M:&tbnh=104&tbnw=119&prev=/images%3Fq%3Dpolywater%26hl%3Den%26sa%3DG%26gbv%3D 2%26tbs%3Disch:1
See:http://lostlake.com/

SEE:http://harmonica.typepad.com/.a/6a00d8345208f469e200e5537885558834-500pi