3 lives in this collection worked in cosmic rays, from 1868 to today. Each has a full course on their life and the mathematics and physics they made.
Often together with: nuclear physics. All fields
American experimental physicist who measured the elementary charge with the oil-drop method, confirmed Einstein's photoelectric equation, named cosmic rays and led Caltech from 1921 to 1945.
experimental physics, atomic physics, cosmic rays
Experimental physicist who counted alpha particles with Rutherford, made the scattering measurements behind the nuclear atom and invented the Geiger–Müller counter.
nuclear physics, radioactivity, particle detection
American physicist whose discovery of the wavelength shift of scattered X-rays established the momentum of light quanta, who mapped the latitude effect of cosmic rays and who directed the Manhattan Project's Metallurgical Laboratory.
x-ray physics, quantum physics, cosmic rays