pt. I: The dynamics of particles. The nature of physics Some mathematics of physics Particle dynamics accelerated motion Particle dynamics mass and force Particle dynamics gravitation Work and conservation of energy Momentum and its conservation Atomism and the laws of gases Heat energy and the kinetic theory of gases Periodic motions and waves pt. II: The electrodynamics of particles. Electric charge Electric field and potential difference Electric currents The magnetic field Induced electromotive force Thermionic emission and some electronics pt. III: Atomic and nuclear phenomena. The identification of the electron The discovery of isotopes Light waves and the electromagnetic theory of light Aspects of the theory of relativity The birth and growth of the quantum theory X rays Bohr's quantum theory of the atom The duality of waves and particles Natural radioactivity Induced transmutation and other nuclear processes Nuclear forces and nuclear energy Particle accelerators Nuclear fission and nuclear energy.