J.J. Thompson and the Birth of Particle Physics

This chapter examines J.J. Thompson's groundbreaking experiments with cathode rays that led to the discovery of electrons and reshaped the understanding of atomic structure. It highlights the pivotal moments in atomic theory, including Rutherford's gold foil experiment, and explores the dual nature of particles and waves, particularly focusing on light and electrons. The discussion illustrates how the evolution of terminology and conceptual frameworks in physics has changed our comprehension of matter and energy over time.