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Old 02-11-2008, 16:57:44   #1
Lazarus and the Gimp
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Fun with Bose-Einstein condensates

Well bugger me.

If you cool rubidium gas to nearly -273 degrees C, two staggeringly weird things happen.

1- If you shine light into it, the light will stop. It slows the speed of light down to a standstil.

2- If you leave it in a beaker, it'll start climbing out of it.
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Old 02-11-2008, 18:18:22   #2
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Does this come up often in pension fund management?

Seriously, though, BECs are cool. I'm TAing the undergrad statistical mechanics course this semester. I think they're covered in Chap. 9 of Reif.
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Old 02-11-2008, 18:20:27   #3
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Though the cool superfluid properties are not covered IIRC
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Old 02-11-2008, 18:20:38   #4
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Bose is so overrated, they sound like every other cheap speaker.
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Old 02-11-2008, 18:22:19   #5
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look look the angry gay guy is making a jokeje.

woohoooooooooo what a day what a day what a day inderdeed
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Old 02-11-2008, 19:18:56   #6
Lazarus and the Gimp
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Can you keep these as pets? If it can climb out of a beaker, it's already more entertaining than a stick insect.
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Old 02-11-2008, 19:21:51   #7
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even more fun than a hemorrhoid
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Old 02-11-2008, 19:37:41   #8
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What do you call those super smooth blocks of metal?
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Old 02-11-2008, 19:53:48   #9
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me balls
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Old 02-11-2008, 20:05:24   #10
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tiny tiny tiny tiny
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Old 02-11-2008, 20:18:02   #11
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Old 02-11-2008, 21:27:24   #12
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You keep stick insects as pets?
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Old 02-11-2008, 21:37:05   #13
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Quote:
Originally posted by TCO
What do you call those super smooth blocks of metal?
???
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Old 02-11-2008, 22:33:03   #14
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Don't know much about B.E.C. but I would like to get my hands on some aerogel. It would make a nice conversation piece if nothing else.
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Old 03-11-2008, 02:42:37   #15
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I have some aerogel in my office. It is just like you say, nice conversation piece.

See also:

http://www.aerogel.com/

Last edited by TCO; 03-11-2008 at 02:46:16.
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Old 03-11-2008, 02:44:09   #16
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supersmooth blocks of metal that tend to stick together?
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Old 03-11-2008, 03:30:37   #17
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Never heard about that. Is it suction or some more complicated surface effect?
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Old 03-11-2008, 04:19:50   #18
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complicated surface effect

I am not remembering what it is called right now either, but it is some property of shear? surfaces

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Old 03-11-2008, 06:20:07   #19
Lazarus and the Gimp
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Monogamy?
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Old 03-11-2008, 08:23:09   #20
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blocks of metal that stick together?????
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Old 03-11-2008, 08:46:48   #21
Lazarus and the Gimp
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The act of sticking together in the absence of any other rational explanation.
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Old 03-11-2008, 08:55:10   #22
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Like being a member of the counterglow community
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Old 03-11-2008, 09:02:54   #23
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Round magnets.
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Old 03-11-2008, 14:28:17   #24
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Quote:
Originally posted by mr_B
even more fun than a hemorrhoid
Those can climb out of your ass.
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Old 03-11-2008, 16:08:34   #25
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Quote:
Originally posted by Lazarus and the Gimp
The act of sticking together in the absence of any other rational explanation.
ummmm.... could it be about the Casimir effect?
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Old 03-11-2008, 16:09:52   #26
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It was the Joel-Brinkley Hypothesis, until that was disproven.
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Old 03-11-2008, 17:31:16   #27
Lazarus and the Gimp
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I have no idea what you are talking about.
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Old 03-11-2008, 17:48:11   #28
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Laz might be demonstrating the 100-nil theory, but I'll risk it.

One of these things is not like the other, one of these things just doesn't belong.
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Old 03-11-2008, 19:35:02   #29
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ummmm.... could it be about the Casimir effect?
No (good idea, but when objects come into physical contact this is overwhelmed by other forces).
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Old 03-11-2008, 19:41:42   #30
Lazarus and the Gimp
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Ah, I understand now.

Billy Joel is a twat, isn't he? He wrote those words for his wife- "Don't go changing just to please me. I love you just the way you are."

And then dumped her for a supermodel.
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Old 03-11-2008, 19:52:35   #31
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you people really do know how to make terrible terrible threads
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Old 03-11-2008, 20:07:21   #32
Lazarus and the Gimp
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We know you like it that way.
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Old 03-11-2008, 20:35:48   #33
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Quote:
Originally posted by Lazarus and the Gimp
Ah, I understand now.

Billy Joel is a twat, isn't he? He wrote those words for his wife- "Don't go changing just to please me. I love you just the way you are."

And then dumped her for a supermodel.
I didn't realize that. His first mistake might have been marrying his buddy's ex-wife.
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Old 03-11-2008, 22:09:19   #34
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She dumped him. He never sang that song again after that iirc.
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Old 03-11-2008, 23:56:04   #35
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It's some sort of classic 50s science thing. I'm thinking Josephson, but of courrse that is different. Supercond junctions. I really don't know it...figured, you would school me.

I R lazy.
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