Feynman diagrams

Feynman diagrams 

Fans of particle physics often encounter a series of doodles called Feynman diagrams. These mystifying scribbles were invented by Richard Feynman and they encode information on how particle physics collisions unfold. But they have an even deeper significance.

Great video by Don Lincoln (born 1964) is an American physicist

https://www.youtube.com/watch?v=hk1cOffTgdk