Richard Feynman was one of the finest theoretical physicists of this century and a tireless ambassador for science. He was the author of several books, including QED: The Strange Theory of Light and Matter and the classic Lectures on Physics. Feynman shared the 1965 Nobel Prize for physics with Shinchiro Tomonaga and Julian Schwinger for his work on quantum electrodynamics.
Steven Weinberg is one of the foremost physicists of our time and a gifted writer on science for general readers. He is the best-selling author of The First Three Minutes and Dreams of a Final Theory, as well as the acclaimed textbooks Gravitation and Cosmology and the two-volume The Quantum Theory of Fields. Professor Weinberg shared the 1979 Nobel Prize for physics with Sheldon Glashow and Abdus Salam for his work on the unification of the electromagnetic and weak interactions.