Commons

model, 7momentumcompared to kinetic energy, 47conservation of, 42relativistic, 87moondistance to, 145gravitational field experienced by, 28orbit, 53motionperiodic, 164muons, 82nano- (metric prefix), 11Neanderthals, 70neutral (electrically), 99newton (unit), 49Newton, Isaac, 95, 153apple myth, 28law of gravity, 27third law, 49Noether’s theorem, 8for angular momentum, 70for energy, 29for momentum, 45Noether, Emmy, 8nuclear energy, 23Oersted, Hans Christian, 117ohm (unit), 107Ohm’s law, 107ohmicdefined, 107open circuit, 103Optics, 28Orion Nebula, 24parabola, 52parallax, 144parallel circuitdefined, 110particle model of light, 138perioddefined, 164Principia Mathematica, 28principle of superposition, 166projectile motion, 52pulsedefined, 166Pythagoras, 134ray diagrams, 140ray model of light, 138reflectiondiffuse, 138specular, 140relativityand magnetism, 118principle of, 75resistance, 106retina, 152reversibility, 146RHIC accelerator, 85Roemer, 135rotational symmetry, 15schematics, 109scientific notation, 12sea-of-arrows representation, 116series circuitdefined, 110short circuitdefined, 109simultaneity, 80sinks in fields, 116Sokal, Alan, 33sound, 170energy, 22speed of, 169sources of fields, 116spacerelativistic effects, 79spring constant, 165sunspots, 123supernovae, 82symmetry, 7rotational, 15time, 29translation, 40Système International, 11timerelativistic effects, 77time reversal, 146time symmetry, 29torquedefined, 68transformer, 126186 Index