CONTENTS INTRODUCTION Greek Origins 19th Century Revival The Electron Isotopes Wave Character of the Electron Spin The Neutron Transformation of Particles JUST GIVE THE NEWS The Photon Electromagnetic Properties Interactions Mass Spin HOW DO YOU KNOW? Experimental Method Conservation Laws Quantitative Study of Radioactive Nuclei Decay Paradox of the Energy-Momentum Balance Enrico Fermi's Little Neutral One Particle-Antiparticle The Conservation of...