Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Foo Off-Topic chit chat with no general subject.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 01-29-04, 12:27 PM   #1
cbhungry
Jungle lady
Thread Starter
 
cbhungry's Avatar
 
Join Date: Mar 2003
Location: Atlanta, Georgia
Bikes: gary fisher cake
Posts: 849
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
sixth form of matter found!

http://story.news.yahoo.com/news?tmp...ce_matter_dc_1


Quote:
The new matter form is called a fermionic condensate and it is the sixth known form of matter -- after gases, solids, liquids, plasma and a Bose-Einstein condensate, created only in 1995
I wonder if keithnordstrom knows these guys, I believe it's in his neck of the woods.
__________________
Ride forever, work whenever.
XX power
Eat more mud, mountain bike 'till you die!

http://www.pnhp.org/
cbhungry is offline   Reply With Quote
Old 01-29-04, 12:30 PM   #2
Guest
Guest
 
Bikes:
Posts: n/a
Mentioned: Post(s)
Tagged: Thread(s)
Quoted: Post(s)


Whoa girl! This is too much. I gotta go lay down and ponder over this one.



Koff
  Reply With Quote
Old 01-29-04, 12:35 PM   #3
joeprim
Senior Member
 
joeprim's Avatar
 
Join Date: Jan 2002
Location: Northern Neck Tidewater Va.
Bikes:
Posts: 1,688
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
CB
Just thing a no friction bicycle!
Thanks
Joe
joeprim is offline   Reply With Quote
Old 01-29-04, 12:38 PM   #4
cbhungry
Jungle lady
Thread Starter
 
cbhungry's Avatar
 
Join Date: Mar 2003
Location: Atlanta, Georgia
Bikes: gary fisher cake
Posts: 849
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
http://www.nature.com/nsu/nsu_pf/031110/031110-16.html

http://www.physicstoday.org/vol-56/i...no10p17-18.pdf

Here's a little blurb on the Bose Einstein condensate vs. a fermionic condensate.
__________________
Ride forever, work whenever.
XX power
Eat more mud, mountain bike 'till you die!

http://www.pnhp.org/

Last edited by cbhungry; 01-29-04 at 12:46 PM.
cbhungry is offline   Reply With Quote
Old 01-29-04, 04:56 PM   #5
DeeBo
Junior Member
 
DeeBo's Avatar
 
Join Date: Jan 2004
Location: South Central
Bikes: Yours
Posts: 24
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
May be silliness on my part but it sounds to me that they've succeeded in discovering a new state of matter rather than a new form of matter. I'm guessing that it's just one of those things when someone not well versed in science has to take what a bunch of geeks say and translate it into something intelligible to the masses.
DeeBo is offline   Reply With Quote
Old 01-29-04, 05:07 PM   #6
cbhungry
Jungle lady
Thread Starter
 
cbhungry's Avatar
 
Join Date: Mar 2003
Location: Atlanta, Georgia
Bikes: gary fisher cake
Posts: 849
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by DeeBo
May be silliness on my part but it sounds to me that they've succeeded in discovering a new state of matter rather than a new form of matter. I'm guessing that it's just one of those things when someone not well versed in science has to take what a bunch of geeks say and translate it into something intelligible to the masses.

It is a new state, form, type whatever, the english language can be very inexact about the description of matter....this fermionic condensate is a cloud of cold potassium atoms forced into a state where they behave strangely. Thus, instead of a sold state of potassium, it is in fermionic condensate state!
__________________
Ride forever, work whenever.
XX power
Eat more mud, mountain bike 'till you die!

http://www.pnhp.org/
cbhungry is offline   Reply With Quote
Old 01-29-04, 05:46 PM   #7
SamDaBikinMan
Crank Crushing Redneck
 
SamDaBikinMan's Avatar
 
Join Date: Nov 2002
Location: A van down by the river.
Bikes: Bikes are environmentally damaging
Posts: 2,600
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
So when should we expest to start seeing the first fermionic condensate bicycle frames.

If I eat a bunch of bananas (high in potassium) and fart in a sub zero room is that considered fermionic condensate?
SamDaBikinMan is offline   Reply With Quote
Old 01-29-04, 06:01 PM   #8
Istanbul_Tea
X-Large Member
 
Istanbul_Tea's Avatar
 
Join Date: Oct 2003
Location: NYC, NY
Bikes: 2004 Rivendell Atlantis, 2004 Thorn eXp, 2004 Bob Brown Cycles Custom
Posts: 580
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by SamDaBikinMan
So when should we expest to start seeing the first fermionic condensate bicycle frames.

If I eat a bunch of bananas (high in potassium) and fart in a sub zero room is that considered fermionic condensate?
No, that's just universally considered rude and in bad taste, as always some things NEVER go out of fashion! Thank Goodness!
Istanbul_Tea is offline   Reply With Quote
Old 01-29-04, 11:28 PM   #9
The Rob
Almost Immortal
 
The Rob's Avatar
 
Join Date: Mar 2002
Location: Portland, Oregon
Bikes: 2004 Trek 7500FX
Posts: 820
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Istanbul_Tea
No, that's just universally considered rude and in bad taste, as always some things NEVER go out of fashion! Thank Goodness!

Dammit, I was gonna say that!
__________________
"Ignorance begets confidence more frequently than does knowledge." -Charles Darwin


http://blog.myspace.com/robcatg

http://therob.wordpress.com
The Rob is offline   Reply With Quote
Old 01-30-04, 06:02 PM   #10
iamlucky13
Footballus vita est
 
iamlucky13's Avatar
 
Join Date: Jun 2002
Location: Portland, OR
Bikes: Trek 4500, Kona Dawg
Posts: 2,118
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I saw the article when it came out, but haven't had time to read it thoroughly. From what I saw, this sounded exactly like a BEC. Anybody know what the difference is?
__________________
"The internet is a place where absolutely nothing happens. You need to take advantage of that." ~ Strong Bad
iamlucky13 is offline   Reply With Quote
Old 01-30-04, 06:28 PM   #11
cbhungry
Jungle lady
Thread Starter
 
cbhungry's Avatar
 
Join Date: Mar 2003
Location: Atlanta, Georgia
Bikes: gary fisher cake
Posts: 849
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
A physicist explained it in a simplistic manner for my feeble mind/

All particles belong to one of two camps: the bosons live on one side of the tracks, and the fermions on the other.

If you open up an auditorium to a waiting crowd of fermions, they will file in in an orderly fashion, filling up the first row before beginning to fill up the second row, and so on in proper grade-school fashion. No two fermions are allowed to share the same seat -- the same quantum-mechanical state.

If you open up the auditorium to a crowd of rowdy bosons, however, the result will be very different. Bosons have no personal-space issues; not only are they able to share the same quantum state, they actually pursue it. The throng of bosons will eagerly seek to pile up on top of one another in the middle of the stage as soon as possible.

The utility of such a boson-pile to physicists is that it does en masse the same weird quantum mechanical things that bosons do all the time in isolation. It's difficult to observe just one boson, but very easy to observe a whole bucketful. When you supercool liquid helium-4 (each atom of which is a boson), you open the auditorium door and give the atoms a chance to pile up on stage. The phase transition that occurs as all the atoms enter the same quantum state is called condensation, or, more specifically, Bose-Einstein condensation. A bucketful of supercold liquid helium displays funky quantum-mechanical behavior at scales visible to human eyes. Bose-Einstein condensates flow without viscosity through the tiniest pores, and they creep up the side of containers in thin films. When you spin their container, they stubbornly choose to rotate at only certain discrete velocities, bucking common sense.

A fermionic condensate, as you might now expect, is the result of supercooling a fermionic substance. These space-conscious particles don't undergo a sudden phase transition like their amicable cousins, but they do condense in their own way.

Imagine again the auditorium buzzing with energetic fermions. There are precisely as many seats as fermions, but it's warm in there and no one wants to sit still. Some are walking in the aisles, others are buying nachos, and others are loitering in the street outside. Seats go unused, energy levels unfilled. As the temperature falls, the restless fermions succumb, and begin to fill in their seats and stay put. Below some critical temperature, not even the fermion nearest the door has the inclination to leave. Below this temperature, the fermions are said to be condensed -- locked rigidly in their energy levels, packed as tightly in their seats as they can be packed.

While not as spectacular as Bose-Einstein condensation, fermionic condensation holds its own surprises. The one on most physicists' minds is a process known as "Cooper pairing," by which two fermions can team up to put on a boson act. The behavior of these pairs, disguised as cozy bosons among hordes of aloof fermionic brethren, is the cause of important phenomena like superconductivity. Electrons are fermions, and only when they form Cooper pairs can they conduct electricity without resistance. The electrons in a superconductor are, in fact, one form of a fermionic condensate.

Here's a good article from Physics Today:

http://www.physicstoday.org/vol-56/...2no10p17-18.pdf
__________________
Ride forever, work whenever.
XX power
Eat more mud, mountain bike 'till you die!

http://www.pnhp.org/

Last edited by cbhungry; 01-30-04 at 06:34 PM.
cbhungry is offline   Reply With Quote
Old 01-30-04, 11:04 PM   #12
The Rob
Almost Immortal
 
The Rob's Avatar
 
Join Date: Mar 2002
Location: Portland, Oregon
Bikes: 2004 Trek 7500FX
Posts: 820
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by cbhungry
A physicist explained it in a simplistic manner for my feeble mind/
"Feeble mind". Uh-huh.

That link didn't work for me, but my brain hurts 'n' stuff already anyway.
__________________
"Ignorance begets confidence more frequently than does knowledge." -Charles Darwin


http://blog.myspace.com/robcatg

http://therob.wordpress.com
The Rob is offline   Reply With Quote
Old 01-31-04, 12:21 AM   #13
Chi
Rides with Cows
 
Chi's Avatar
 
Join Date: Apr 2003
Location: Fixing a flat
Bikes: Trek 7000
Posts: 1,232
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
My brain hurts too....
__________________
Chi is offline   Reply With Quote
Old 01-31-04, 01:53 AM   #14
slider
Bike Junkie
 
Join Date: Nov 2003
Bikes:
Posts: 238
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I like Nachos
slider is offline   Reply With Quote
Old 01-31-04, 10:18 AM   #15
SlipperySlope
Member
 
SlipperySlope's Avatar
 
Join Date: Jul 2003
Location: Tippy Canoe Co
Bikes: Mikado Kensington, Trek 440
Posts: 42
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by cbhungry
...disguised as cozy bosons...
Wow - I get it - thanks- but "cozy boson" makes me giggle...


mmmm.....nachos.....
SlipperySlope is offline   Reply With Quote
Old 01-31-04, 08:25 PM   #16
iamlucky13
Footballus vita est
 
iamlucky13's Avatar
 
Join Date: Jun 2002
Location: Portland, OR
Bikes: Trek 4500, Kona Dawg
Posts: 2,118
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by slider
I like Nachos
I like nachos too. Good thinking food. Gummy bears taste better, but their goodness distracts me and I can't stop eating...hey! We're talking about fermions here, not food!

Thanks CB.
__________________
"The internet is a place where absolutely nothing happens. You need to take advantage of that." ~ Strong Bad
iamlucky13 is offline   Reply With Quote
Old 01-31-04, 08:33 PM   #17
late
Senior Member
 
late's Avatar
 
Join Date: Oct 2002
Location: Southern Maine
Bikes:
Posts: 8,418
Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 1290 Post(s)
Can I have my warp drive now?
late is online now   Reply With Quote
Old 01-31-04, 09:22 PM   #18
Chi
Rides with Cows
 
Chi's Avatar
 
Join Date: Apr 2003
Location: Fixing a flat
Bikes: Trek 7000
Posts: 1,232
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Warp 9, engage!
__________________
Chi is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 11:51 AM.