Six not-so-easy pieces : Einstein's relativity, symmetry, and space-time /
Richard P. Feynman ; originally prepared for publication by Robert B. Leighton and Matthew Sands ; new introduction by Roger Penrose.
- Reading, Mass. : Addison-Wesley Pub., c1997.
- xxvii, 152 p. : ill. ; 24 cm.
- Helix books .
Includes bibliographical references and index.
0201150255
96047811
Symmetry (Physics) Special relativity (Physics) Space and time.