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The world's largest neutrino telescope made from a giant cube of ice at the South Pole
Live Science ^ | 12/20/2010 | Live Science staff

Posted on 01/03/2011 9:44:44 AM PST by Silentgypsy

The world's largest neutrino telescope – made from a giant cube of ice at the South Pole – aimed at detecting subatomic particles traveling near the speed of light has been completed, researchers announced today (Dec. 20). http://www.livescience.com/environment/south-pole-neutrino-observatory-construction-finished-101220.html

(Excerpt) Read more at livescience.com ...


TOPICS: Science
KEYWORDS: cube; giant; ice; largest; neutrino; pole; south; southpole; telescope; worlds

1 posted on 01/03/2011 9:44:47 AM PST by Silentgypsy
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To: Silentgypsy

Sure, it’s all fun and games until global warming hits.


2 posted on 01/03/2011 9:47:48 AM PST by bgill (K Parliament- how could a young man born in Kenya who is not even a native American become the POTUS)
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To: Silentgypsy

The South Pole is famous for its ice...just sayin’


3 posted on 01/03/2011 9:49:36 AM PST by FrankR (The Evil Are Powerless If The Good Are Unafraid! - R. Reagan)
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To: bgill
Where my reparations at?

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4 posted on 01/03/2011 9:50:03 AM PST by cripplecreek (Remember the River Raisin! (look it up))
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To: Silentgypsy
... aimed at detecting subatomic particles traveling near the speed of light

If it's aimed at subatomic particles... wouldn't that make it a microscope?

5 posted on 01/03/2011 9:51:22 AM PST by pgyanke (Republicans get in trouble when not living up to their principles. Democrats... when they do.)
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To: FrankR

This thing stands to wipe out every polar bear in Antarctica.


6 posted on 01/03/2011 9:52:09 AM PST by Billthedrill
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To: Silentgypsy

I wish Asimov was here to see this.

IIRC he wrote a story about a robot who, lacking proper tools and materials, built a neutrino from a couple of batteries.

Actually, I just wish he was still with us — the same for Heinlein (who, I would hope, would have overcome his impatience).


7 posted on 01/03/2011 9:52:37 AM PST by freedumb2003 (Nothing sharpens the mind like not being able to get a job. /Nonstatist)
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To: All

So they shoulda built it out of something else?


8 posted on 01/03/2011 9:53:48 AM PST by Silentgypsy
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To: pgyanke

Maybe because the little neutrinos are so far away, it should be called a pgyanke microtelescope.


9 posted on 01/03/2011 9:55:14 AM PST by Silentgypsy
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To: Silentgypsy
Your search - pgyanke microtelescope - did not match any documents.
10 posted on 01/03/2011 9:58:50 AM PST by palmer (Cooperating with Obama = helping him extend the depression and implement socialism.)
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To: All

It is apparent that you don’t take your neutrinos seriously. *No neutrinos for you!*
Love and kisses,
The Neutrino Nazi


11 posted on 01/03/2011 9:59:39 AM PST by Silentgypsy
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To: cripplecreek

So, vanilla ice/ice baby wasn’t available for science?


12 posted on 01/03/2011 10:09:58 AM PST by newfreep (Palin/DeMint 2012 - Bolton: Secy of State)
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To: pgyanke

“If it’s aimed at subatomic particles... wouldn’t that make it a microscope?”

It’s detecting neutrinos coming from outer space, just like an optical telescope detects and focuses photons (even smaller than neutrinos) to see planets and stars.


13 posted on 01/03/2011 10:11:43 AM PST by aquila48
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To: Silentgypsy

How do they aim this thing?


14 posted on 01/03/2011 10:13:07 AM PST by aquila48
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To: aquila48

Ahhhh... Thank you for clearing that up.


15 posted on 01/03/2011 10:24:12 AM PST by pgyanke (Republicans get in trouble when not living up to their principles. Democrats... when they do.)
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To: aquila48

No aiming, they just look for collisions between neutrinos and atoms in the surrounding ice. Collisions are relatively rare, since almost all neutrinos go straight through the Earth. With a billion or so square meters of ice to look at, and neutrinos constantly zipping through Earth, they hope to see one collision every 20 minutes.


16 posted on 01/03/2011 10:25:23 AM PST by antiRepublicrat
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To: Silentgypsy

Somehow those ice hotels in Sweden don’t seem so impressive, now.


17 posted on 01/03/2011 11:01:56 AM PST by sportutegrl
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To: Silentgypsy

Somehow those ice hotels in Sweden don’t seem so impressive, now.


18 posted on 01/03/2011 11:02:10 AM PST by sportutegrl
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To: antiRepublicrat

I understand that, but if it’s a telescope they have to be “looking” at something in space, so how do they know what they’re “looking at” if it’s not aimed at something?

It’s not a study of neutrinos it’s a study of the source of neutrinos, just like an optical telescope is not a study of photons, but a study of the body that emitted (or reflected, as in the case of planets) those photons.


19 posted on 01/03/2011 12:27:59 PM PST by aquila48
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To: aquila48

Interesting semantic argument. A telescope detects X (radio waves, photons, X-rays, gamma rays, etc.) from a source. This one detects neutrinos. Every telescope has an angle of view. You could consider this one to have a 360 degree angle of view, omnidirectional I guess.

In any case, this and its smaller predecessors are considered to be telescopes.


20 posted on 01/03/2011 12:47:50 PM PST by antiRepublicrat
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To: cripplecreek

Word to your mutha!

21 posted on 01/03/2011 12:49:13 PM PST by dfwgator
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To: antiRepublicrat

“You could consider this one to have a 360 degree angle of view, omnidirectional I guess.”

OK. Still not clear how they get a “picture” of the sources. How do they infer the direction that each neutrino that interacts with the ice cube is coming from? In other words, how do they “focus” the beam. Any telescope requires a “focus” mechanism, otherwise all you get is a blob. A pinhole camera relies on the small size of the hole as a collimator, i.e. focus mechanism, but how do you collimate a neutrino beam when they go through everything.

I did a bit of searching and found this....

http://www.physicsforums.com/archive/index.php/t-39271.html

It touches on my question but doesn’t really answer it.


22 posted on 01/03/2011 1:56:47 PM PST by aquila48
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To: pgyanke

It bothered me, too.


23 posted on 01/03/2011 3:16:57 PM PST by Silentgypsy
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