Electrons and Their Interactions, QED (Part 3 of 4), Richard Feynman, 1979

The third in a series of four lectures by Caltech physics professor Richard Feynman given at the University of Auckland in 1979 as part of the Sir Douglas Robb Lectures series. The four chapters of Feynman's book "QED: The Strange Theory of Matter and Light" are transcripts from these four lectures.