South Pole Neutrino Detector

[drwayne]

Researchers at Northeastern University and the University of California, Irvine say that scientists might soon have evidence for extra dimensions and other exotic predictions of string theory. Early results from a neutrino detector at the South Pole, called AMANDA, show that ghostlike particles from space could serve as probes to a world beyond our familiar three dimensions, the research team says. <br /><br />Rest of the story:<br /><br />http://www.physorg.com/news10295.html <div class="Discussion_UserSignature"> <p>"1) Give no quarter; 2) Take no prisoners; 3) Sink everything."  Admiral Jackie Fisher</p> </div>

 

[jatslo]

That Cherenkov Radiation like blue light that gives direction also gives magnitude, which is a vector velocity, so when they publish the results, we should know from where and how fast these detected neutrinos originated from for starters. I find it interesting that only a low volume of neutrinos have been detected, but I am not surprised, because the neutrinos that they failed to trap, are possibly faster than the ones that they trapped, which means that velocity in this experiment is very interesting indeed.<br /><br />Magnitude was not mentioned in this article, did you notice?

 

[mikeemmert]

I've exhausted this link and I can't find out a whole lot more about the detectors themselves, AMANDA and Ice Cube. <br /><br />Antarctic ice is part of these detectors. They say that at great depth, ice is extremely transparent, thus providing a quiet envirnonment for detecting Cherenkov radiaton.<br /><br />If this stuff is so transparent, then why doesn't light filter down to it from above? That's important to this thead in that we would like to see exactly how these detectors work, so we can evaluate the reliability of the results they present.<br /><br />But there are two other threads in which the transparency of ice is important, and the idea that links them is lifeforms beneath the ice cover of Europa and the newly discovered extrasolar planet. I already knew that deep ice was transparent, but I wonder about the covering layer. If it excludes all light, then Europan life will be in for hard times. Once they've eaten all the hydrogen sulfide from the core, it's curtains.<br /><br />Dr. Wayne, what do you know about light transmission in thick ice at various depths? If you can provide a link to that, I can transfer it to other threads so as to keep from hijacking this one. The other threads are already hijacked.

 

[drwayne]

"Dr. Wayne, what do you know about light transmission in thick ice at various depths?"<br /><br />Not much, really.<br /><br />Sorry. <img src="/images/icons/frown.gif" /><br /><br />Wayne <div class="Discussion_UserSignature"> <p>"1) Give no quarter; 2) Take no prisoners; 3) Sink everything."  Admiral Jackie Fisher</p> </div>

 

[jatslo]

I know something, but you ignore, so your on your own.