"So there are two aspects of an amplitude. An amplitude is a sort of two dimensional thing and therefor you can represent it... on a plane as an arrow. So an amplitude is a physical thing, which also is identical, we... make it very equal by using three lines [ ≡ ] instead of two [ = ], the same as these arrows that I've been talking about on a plane, and that's, by the way, for those that know mathematics, that can be equivalent to representing everything by s. You can do it algebraically, in other words, not just by drawing the arrows.AMPLITUDE ≡ ARROW ( ≡ COMPLEX NUMBERS)"
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Academics from the United StatesNon-fiction authors from the United StatesNobel laureates in PhysicsNobel laureates from the United StatesPhysicists from the United States
Original Language: English
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3, 1:16
https://en.wikiquote.org/wiki/Richard_Feynman
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