Feynman's Lost Lecture: The Motion of Planets Around the Sun

The recent discovery and publication of a lost lecture by physicist Richard Feynman provides an opportunity to view his extraordinary ability to lecture on complex theories in terms simple enough for college freshmen to understand. Feynman's lecture presents his explanation of Kepler's laws of planetary motion. This article excerpts part of the book, FEYNMAN'S LOST LECTURE, including "Judith Goodstein's Preface, the Introduction, and a part of David Goodstein's reminiscences" (ENGINEERING & SCIENCE).