TY - BOOK AU - Asimov Isaac TI - Understanding physics AV - QC23 .A8 U1 - 530 PY - 1966///] CY - New York PB - Walker KW - Physics KW - Local N1 - Includes bibliographies; v. 1. Motion, sound, and heat.--v. 2. Light, magnetism, and electricity.--v. 3. The electron, proton, and neutron ER -