: Feynman Diagram

 

This is from a friend's father-in-law. 

 Here's the explanation of the diagram

 

 

 

Well, see, some physicists were out drinking one night and they got to playing darts and they got a little silly and they bet that the loser had to get the word "penguin" into their next paper, so the loser went home and did smoketh upon the grass of Maui and had an epiphany that certain Feynman diagrams looked like penguins and so did refer to those as such. And the name did sticketh and yay was used by all far and wide. Thus goeth science.

 

    

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