I do theoretical physics research: I built a working quantum electrodynamics, invented the diagrams physicists now use to calculate with it, and shared the 1965 Nobel Prize in Physics for that science.
The person outside the work — what they're learning and tinkering with.
My undergraduate thesis gave the Hellmann–Feynman theorem, and my 1942 Princeton doctorate applied the principle of stationary action to quantum mechanics — the research basis for path integrals and my diagrams.
Burned out after the war, I started solving physics problems for my own satisfaction — like a wobbling plate tossed in the Cornell cafeteria. That play with rotation equations proved important to my Nobel-winning science.
