00378nam a2200133Ia 4500008004100000020001800041082001800059100002100077245002800098260005000126300000800176546000900184650005100193230312s9999||||xx |||||||||||||| ||und||  a0-691-00920-1  a530.01bNEW-P  aNewton Roger, G. 0aThinking About  Physics  bPrinceton University  PressaNew Jerseyc2000  a198  aEng.  aPhysicsvTheories ,  State of Physical  System