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(Smithsonian Magazine)   Ever wondered why a famous Feynman diagram (describing the paths of quantum particle decay) was named after a penguin? Here's why   (blogs.smithsonianmag.com) divider line 14
    More: Spiffy, Richard Feynman, Feynman diagrams, virtual particles, self-energy, quantum information processing, physics, Melissa Franklin  
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3938 clicks; posted to Geek » on 23 Jun 2013 at 6:03 PM (1 year ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



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2013-06-23 05:57:13 PM
I heard a different version where the person tasked with taking care of the animals was from an Eastern European country.
 
2013-06-23 06:47:56 PM
I never wondered about that. Should I?
 
2013-06-23 06:52:11 PM
That's the clean version.

A vacationing penguin is driving his through Arizona when he notices that the oil pressure light is on. He gets out to look and sees oil dripping out of the motor. He drives to the nearest town and stops at the first gas station.
After dropping the car off, the penguin goes for a walk around town. He sees an ice-cream shop and, being a penguin in Arizona, decides that something cold would really hit the spot. He gets a big dish of ice cream and sits down to eat. Having no hands he makes a real mess trying to eat with his flippers. After finishing his ice cream, he goes back to the gas station and asks the mechanic if he's found the problem. The mechanic looks up and says "It looks like you blew a seal."
"No no," the penguin replies, "it's just ice cream."
 
2013-06-23 06:56:22 PM
Every day, subby. Every day.
 
2013-06-23 06:57:36 PM

red5ish: I never wondered about that. Should I?


No, no you shouldn't. Namely because it's not. It's NAMED after the physicist who invented it.  It LOOKS like a penguin.
 
2013-06-23 07:12:58 PM
Oh.  I thought it was about how a penguin got created at the North Pole via quantum fluctuation and really was witnessed by Bugs Meany while on vacation there, proving that his alibi was true and that rat bastard Encyclopedia Brown was full of shiat.  The guy was railroaded by that smug little egghead jerk.
 
2013-06-23 07:43:24 PM

Farker Soze: Oh.  I thought it was about how a penguin got created at the North Pole via quantum fluctuation and really was witnessed by Bugs Meany while on vacation there, proving that his alibi was true and that rat bastard Encyclopedia Brown was full of shiat.  The guy was railroaded by that smug little egghead jerk.


that was just beautiful.
 
2013-06-23 07:47:41 PM
FWIW, these diagrams are not just pictures. They set the rules on how calculate an amplitude (related to rate basically) for the process based on the vertices and connecting propagators. And you can't just draw any such picture and the process be physical - there are rules about what can connect to what...
This particular process is interesting because it is flavor-changing (requires the W boson) w/ coupling to a photon or gluon. These processes are generally rare in the standard model, so they're interesting to measure if you're looking for physics beyond the standard model.

Also, Ellis was completely baked when the picture occurred to him... cheers
 
2013-06-23 07:58:54 PM

NIXON YOU DOLT!!!!!: Farker Soze: Oh.  I thought it was about how a penguin got created at the North Pole via quantum fluctuation and really was witnessed by Bugs Meany while on vacation there, proving that his alibi was true and that rat bastard Encyclopedia Brown was full of shiat.  The guy was railroaded by that smug little egghead jerk.

that was just beautiful.


truly. does fark have a post of the year thing?
 
2013-06-23 08:08:19 PM
Ford, you're turning into a penguin. Stop it.
 
2013-06-23 08:54:11 PM

wjllope: FWIW, these diagrams are not just pictures. They set the rules on how calculate an amplitude (related to rate basically) for the process based on the vertices and connecting propagators. And you can't just draw any such picture and the process be physical - there are rules about what can connect to what...
This particular process is interesting because it is flavor-changing (requires the W boson) w/ coupling to a photon or gluon. These processes are generally rare in the standard model, so they're interesting to measure if you're looking for physics beyond the standard model.

Also, Ellis was completely baked when the picture occurred to him... cheers


Looks to me like a quark/antiquark pair annihilate into a gluon which decays into a quark/antiquark pair which annihilates another quark and antiquark from outside releasing two W bosons.
 
2013-06-23 10:27:43 PM
"Famous?"
 
2013-06-23 11:29:03 PM

HairBolus: That's the clean version.


Thank you for this story. :)
 
2013-06-24 06:48:43 AM

wjllope: FWIW, these diagrams are not just pictures. They set the rules on how calculate an amplitude (related to rate basically) for the process based on the vertices and connecting propagators. And you can't just draw any such picture and the process be physical - there are rules about what can connect to what...
This particular process is interesting because it is flavor-changing (requires the W boson) w/ coupling to a photon or gluon. These processes are generally rare in the standard model, so they're interesting to measure if you're looking for physics beyond the standard model.

Also, Ellis was completely baked when the picture occurred to him... cheers


Marijuana is a gateway drug into physics!
 
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