The two latest volumes in the acclaimed Feynman Lectures on Physics audio series deal with the fundamentals of mechanics and sound. These lectures by the late Richard P. Feynman were originally delivered to his physics students at Caltech and later fashioned by the author into his classic textbook Lectures on Physics.Volume 11, Feynman on Fundamentals: Mechanics, contains sections on transients, harmonic oscillators, linear systems, and the principle of statistical mechanics. Volume 11, Feynman on Science and Vision, contains sections on atoms in motion, basic physics, the relation of physics to other sciences, probability, color vision and the mechanisms of seeing.