: In related research, Ohanian argues that electron spin and magnetic moments are not "mysterious internal" properties but are actually due to a circulating flow of energy and charge in the electron’s wave field. Table of Contents The textbook is organized into 12 primary chapters: The Origins of Quantum Mechanics The Free Particle in Wave Mechanics Particles in Potentials Axiomatic Formulation of Quantum Mechanics The Evolution of States in Time The Factorization Method The Particle in Three Dimensions and Angular Momentum Central Potentials Spin and the Exclusion Principle Perturbation Theory Scattering and Resonances The Interpretation of Quantum Mechanics Critical Reception