With regard to wave superposition, [[Richard Feynman]] wrote:<ref>Lectures in Physics, Vol, 1, 1963, pg. 30-1, Addison Wesley Publishing Company Reading, Mass [https://books.google.com/books?id=S-JFAgAAQBAJ&lpg=SA30-PA1&dq=feynman%20interference%20and%20diffraction&pg=SA30-PA1#v=onepage&q=feynman%20interference%20and%20diffraction&f=false]</ref> | With regard to wave superposition, [[Richard Feynman]] wrote:<ref>Lectures in Physics, Vol, 1, 1963, pg. 30-1, Addison Wesley Publishing Company Reading, Mass [https://books.google.com/books?id=S-JFAgAAQBAJ&lpg=SA30-PA1&dq=feynman%20interference%20and%20diffraction&pg=SA30-PA1#v=onepage&q=feynman%20interference%20and%20diffraction&f=false]</ref> |