Richard Feynman

Richard Phillips Feynman (May 11, 1918 – February 15, 1988) was an American theoretical physicist renowned for his pioneering work in quantum electrodynamics, earning him a share of the 1965 Nobel Prize in Physics alongside Julian Schwinger and Sin-Itiro Tomonaga for developing a relativistic quantum theory of electrons interacting with electromagnetic fields. Born in New York City, he earned his bachelor's degree from the Massachusetts Institute of Technology in 1939 and a doctorate from Princeton University in 1942 before joining the Manhattan Project at Los Alamos National Laboratory, where he conducted theoretical calculations on neutron diffusion, uranium hydride reactivity, and aspects of atomic bomb design critical to the project's success.

Feynman's innovations included the path integral formulation of quantum mechanics and Feynman diagrams, visual tools that simplified computations of particle interactions and became indispensable in quantum field theory, enabling precise predictions matching experimental data to high accuracy. After the war, he joined the California Institute of Technology as a professor in 1950, where he taught for decades and delivered the influential Feynman Lectures on Physics, emphasizing intuitive understanding over rote memorization.

Richard Phillips Feynman was born on May 11, 1918, in New York City to Melville Arthur Feynman, a sales manager specializing in uniforms, and Lucille Phillips, a homemaker. Melville, born in 1890 in Minsk, Belarus, to a Jewish family, emigrated to the United States as a child with his parents, settling in New York, where he later worked in sales amid economic fluctuations including the Great Depression. Lucille, born in 1895, came from Jewish immigrant parents whose origins traced to Poland or Germany, and she managed the household while providing emotional support and a sense of humor to the family.

The family, of Ashkenazi Jewish descent but non-observant in religious practice, maintained a middle-class existence, neither affluent nor impoverished, initially in Manhattan before relocating to Far Rockaway in Queens when Richard was five years old. Feynman's younger sister, Joan, was born in 1927, nine years after him, leaving him without close-in-age playmates during early childhood and fostering independent pursuits. The household emphasized intellectual curiosity over strict dogma; Melville, despite lacking formal scientific training, instilled in his son a skepticism toward unquestioned authority and a drive to comprehend underlying principles, such as explaining natural phenomena through experimentation rather than rote acceptance. Lucille contributed by nurturing a playful environment, though Melville's influence proved dominant in shaping Richard's analytical mindset from toddlerhood, including early lessons in probability and mechanics using household objects.