A look into the discovery of the most fundamental subatomic particle in nature, the proton, which determines why elements have different physical and chemical properties.
Presents the story of the discovery of the first subatomic particle and how it revolutionized understanding of the atom in chemistry and led to the new field of electronics.
Discusses quarks, fundamental particles that make up protons, neutrons, and other subatomic particles, and describes the process by which scientists came to "detect" them.
Presents an investigation of photons--particles with no mass that move at exactly the speed of light, discussing the nature of light and the discovery of the photon, and the role of photons in the atom and in technology.
A look into the discovery of the neutron, which completed our picture of the structure of the atom and enabled us to explain the existence of isotopes and understand how nuclear fission occurs.
