Catalog · Einstein, Oppenheimer, Feynman: Physics in the 20th Century Lecture 20 of 25 Lecture 20: A Conservative Revolution: QED and Renormalization ← Previous Lecture 19: Counterculture and Physics Next → Lecture 21: Teaching Feynman's Tools: The Dispersion of Feynman Diagrams in Postwar Physics ✓ Mark complete Materials Transcript (PDF) ↗ transcript