Feynman, Richard P.  1918-1988. <br/><br/>
Six not-so-easy pieces  Einstein's relativity, symmetry, and space-time /  [sound recording] : 
Richard P. Feynman ; introduction by Roger Penrose. 
 - [S.l.] :  Addison-Wesley Publishing Co.,  [1997] 
 - 6 sound discs :  digital ;  4 3/4 in. 
<br/><br/> Compact disc. 
<br/><br/>CD1: Lecture 1: Vectors, November 3, 1961 -- CD2: Lecture 2: Symmetry in physical laws, May 20, 1963 -- CD3: Lecture 3: The special theory of relativity, November 17, 1961 -- CD4: Lecture 4: Relativistic energy and momentum, October 6, 1961 -- CD5: Lecture 5: Space-time, November 28, 1961 -- CD6: Lecture 6: Curved space, June 1, 1962. 
<br/><br/><label>Standard No.: </label>9780201311334  90000 
<br/><br/><label>Publisher. No.: </label>0-201-31151-8  Addison-Wesley Publishing Co. 
<br/><br/><label>LCCN: </label>2003582256 
<br/><br/><label>LC Class. No.: </label>RZA 6983 
<br/><br/><label>Dewey Class. No.: </label>530.11  / FEY