  Online nowStarspirit- starspirit is a woman from A Mountain Town, Arizona, USA.
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- Member since Jan 11, 2005
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World First WIMP Detector: Searching for Dark Matter | Universe Today
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Jun 17, 9:47pm
7 reviews
•http://www.universetoday.com/2008/05/...
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From the page: "How do you catch a WIMP? No, I'm not talking about bullying the weakest kid in class, I'm talking about Weakly Interacting Massive Particles (those WIMPs). Well, it isn't easy. Although they are "massive" by definition, they do not interact with the electromagnetic force (via photons) so they cannot be "seen" and they do not interact with the strong nuclear force, so they cannot be "felt" by atomic nuclei.
If we cannot detect WIMPs via these two forces, how can we possibly ever hope to detect them? After all, WIMPs are theorized to be flying through the Earth without hitting anything, they are that weakly interacting. But sometimes, they might collide with atomic nuclei but only if they collide head-on.
This is a very rare occurrence, but the Large Underground Xenon (LUX) detector will be buried 4,800 feet (1,463 meters, or nearly a mile) underground in an old South Dakota goldmine and scientists are hopeful that when an unlucky WIMP bumps into a xenon atom, a flash of light will be captured, signifying the first ever observation of dark matter..."
Here's a great site astroengine.com [astroengine.com]
So many physics research papers and news items are released every day to the public domain, but many don't get noticed, especially if they originate from a small institution or individual. It is the purpose of astroENGINE to find interesting papers, letters, proceedings or online articles of interest and discuss them in an informal, yet informed, crisp blog format.
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