Cover -- Half-title -- Title -- Copyright -- CONTENTS -- PREFACE -- 1 MOTION ON EARTH AND IN THE HEAVENS -- 1.1 Galileo's Telescope -- 1.2 The Old Astronomy -- 1.3 Aristotle and Ptolemy: Models and Mathematics -- 1.4 Copernicus: Getting Behind Appearances -- 1.5 Galileo -- 1.6 Kepler: Beyond Circles -- 1.7 Newton -- 1.8 Conclusion -- 2 ENERGY, HEAT AND CHANCE -- 2.1 Introduction -- 2.2 Temperature and Thermometers -- 2.3 Energy and Its Conservation -- 2.4 Heat as Energy -- 2.5 Atoms and Molecules -- 2.6 Steam Engines and Entropy -- 2.7 Entropy and Randomness -- 2.8 Chaos -- 2.9 Conclusion -- 3 ELECTRICITY AND MAGNETISM -- 3.1 Electric Charges -- 3.2 Magnets -- 3.3 Electric Currents and Magnetism -- 3.4 Faraday and Induction of Electricity by Magnetism -- 3.5 Maxwell's Synthesis: Electromagnetism -- 3.6 Conclusion -- 4 LIGHT -- 4.1 Waves -- 4.2 Sound -- 4.3 Light -- 4.4 The Principle of Least Time -- 4.5 What Is Light? -- 4.6 Light Waves -- 4.7 Waves in What? -- 4.8 Light Is Electromagnetism -- 4.9 Conclusion -- 5 SPACE AND TIME -- 5.1 Electrons -- 5.2 Is the Speed of Light Always the Same? -- 5.3 The Unity of Space and Time -- 5.4 Space, Time and Motion -- 5.5 The Geometry of Spacetime -- 5.6 Lorentz Transformations -- 5.7 Time Dilation and the "Twin Paradox" -- 5.8 Distances and the Lorentz-Fitzgerald Contraction -- 5.9 How Can We Believe All This? -- 5.10 4-Vectors -- 5.11 Momentum and Energy -- 5.12 Electricity and Magnetism in Spacetime -- 5.13 Conclusion -- 6 LEAST ACTION -- 6.1 What This Chapter Is About -- 6.2 Action -- 6.3 Minimum or Just Stationary? -- 6.4 Why Is the Action Least? -- 6.5 The Magnetic Action -- 6.6 Time-Varying Fields and Relativity -- 6.7 Action for the Electromagnetic Field -- 6.8 Momentum, Energy and the Uniformity of Spacetime -- 6.9 Angular Momentum -- 6.10 Conclusion -- 7 GRAVITATION AND CURVED SPACETIME.

7.1 The Problem -- 7.2 Curvature -- 7.3 Gravity as Curvature of Spacetime -- 7.4 Maps and Metrics -- 7.5 The Laws of Einstein's Theory of Gravity -- 7.6 Newton and Einstein Compared -- 7.7 Weighing Light -- 7.8 Physics and Geometry -- 7.9 General "Relativity"? -- 7.10 Conclusion -- 8 THE QUANTUM REVOLUTION -- 8.1 The Radiant Heat Crisis -- 8.2 Why Are Atoms Simple? -- 8.3 Niels Bohr Models the Atom -- 8.4 Heisenberg and the Quantum World -- 8.5 Schrödinger Takes Another Tack -- 8.6 Probability and Uncertainty -- 8.7 Spin -- 8.8 Feynman's All Histories Version of Quantum Theory -- 8.9 Which Way Did It Go? -- 8.10 Einstein's Revenge: Quantum Entanglement -- 8.11 What Has Happened to Determinism? -- 8.12 What an Electron Knows About Magnetic Fields -- 8.13 Which Electron Is Which? -- 8.14 Conclusion -- 9 QUANTUM THEORY WITH SPECIAL RELATIVITY -- 9.1 Einstein Plus Heisenberg -- 9.2 Fields and Oscillators -- 9.3 Lasers and the Indistinguishability of Particles -- 9.4 A Field for Matter -- 9.5 How Can Electrons Be Fermions? -- 9.6 Antiparticles -- 9.7 QED -- 9.8 Feynman's Wonderful Diagrams -- 9.9 The Perils of Point Charges -- 9.10 The Busy Vacuum -- 9.11 Conclusion -- 10 ORDER BREAKS SYMMETRY -- 10.1 Cooling and Freezing -- 10.2 Refrigeration -- 10.3 Flow without Friction -- 10.4 Superfluid Vortices -- 10.5 Metals -- 10.6 Conduction without Resistance -- 10.7 Conclusion -- 11 QUARKS AND WHAT HOLDS THEM TOGETHER -- 11.1 Seeing the Very Small -- 11.2 Inside the Atomic Nucleus -- 11.3 Quantum Chromodynamics -- 11.4 Conclusion -- 12 UNIFYING WEAK FORCES WITH QED -- 12.1 What Are Weak Forces? -- 12.2 The Looking-Glass World -- 12.3 The Hidden Unity of Weak and Electromagnetic Forces -- 12.4 An Imaginary, Long-Range Electroweak Unification -- 12.5 The Origin of Mass -- 12.6 GUTs -- 12.7 Conclusion -- 13 GRAVITATION PLUS QUANTUM THEORY - STARS AND BLACK HOLES.

13.1 Black Holes -- 13.2 Stars, Dwarves and Pulsars -- 13.3 Unleashing Gravity's Power: Black Holes at Large -- 13.4 The Crack in Gravity's Armour -- 13.5 Black Hole Entropy: Gravity and Thermodynamics -- 13.6 Quantum Gravity: The Big Challenge -- 13.7 Something from Nothing -- 13.8 Conclusion -- 14 PARTICLES, SYMMETRIES AND THE UNIVERSE -- 14.1 Cosmology -- 14.2 The Hot Big Bang -- 14.3 The Shape of the Universe in Spacetime -- 14.4 A Simple Recipe for the Universe -- 14.5 Why Is There Any Matter Now? -- 14.6 How Do We Tell the Future from the Past? -- 14.7 Inflation -- 14.8 Conclusion -- 15 QUERIES -- 15.1 Hidden Dimensions: Charge as Geometry -- 15.2 Supersymmetry: Marrying Fermions with Bosons -- 15.3 String Theory: Beyond Points -- 15.4 Lumps and Hedgehogs -- 15.5 Gravity Modified - a Radical Proposal -- APPENDIX A THE INVERSE-SQUARE LAW -- APPENDIX B VECTORS AND COMPLEX NUMBERS -- APPENDIX C BROWNIAN MOTION -- APPENDIX D UNITS -- GLOSSARY -- BIBLIOGRAPHY -- INDEX.