Richard Feynman

Richard Phillips Feynman was born on May 11, 1918, in the Far Rockaway section of Queens, New York City. His father, Melville Feynman, sold uniforms and had emigrated from Minsk as a child; his mother, Lucille Phillips, came from a comfortable Manhattan family. Melville decided before his son's birth that the boy would be a scientist, and he raised Richard on puzzles, encyclopedia readings, and walks where naming a bird mattered less than understanding what it was doing ^[1].

The household was Jewish but not observant, and Feynman later described himself as an atheist. By his early teens he had taught himself trigonometry, advanced algebra, and calculus from library books, filling notebooks with his own notation. He repaired radios for neighbors during the Depression, a sideline he recounted with relish decades later, and he ran the mathematics team at Far Rockaway High School, where an IQ test famously scored him at a respectable but unremarkable 125 ^[1][2].

Columbia University rejected him, a decision often attributed to quotas then limiting Jewish applicants, so in 1935 he entered the Massachusetts Institute of Technology. He switched from mathematics to electrical engineering and finally to physics, publishing two papers as an undergraduate. On the Putnam mathematics competition in his senior year he finished among the top five scorers in the country. He graduated from MIT in 1939 and moved to Princeton for doctoral work ^[2].

At Princeton, Feynman studied under John Archibald Wheeler, and their collaboration produced the Wheeler-Feynman absorber theory of electrodynamics. His 1942 doctoral thesis introduced the path integral formulation of quantum mechanics, the idea that a particle moving between two points can be treated as taking every possible path at once, with each path contributing to the final probability ^[3]. The approach became one of the standard languages of modern physics.

War interrupted the academic track. In 1943 Feynman joined the Manhattan Project at Los Alamos, New Mexico, where at age 25 he became a group leader in Hans Bethe's theoretical division. Together they produced the Bethe-Feynman formula for estimating the yield of a fission bomb. He also supervised the human computing teams and later the IBM punched-card machines that ran implosion calculations, and he audited safety procedures at the uranium enrichment plant in Oak Ridge, Tennessee ^[1][4]. His off-hours hobby of picking locks and opening colleagues' safes, then leaving notes inside, became part of Los Alamos lore.

These were also years of private grief. His first wife, Arline Greenbaum, whom he married in 1942 knowing she had tuberculosis, lived in a sanatorium in Albuquerque so they could be near each other. She died in June 1945, weeks before the Trinity test, which Feynman watched from a truck windshield rather than through the issued dark glasses ^[1]. After the war he accepted a professorship at Cornell University, recruited by Bethe.

Feynman's central scientific contribution was his reconstruction of quantum electrodynamics (QED), the theory describing how light and charged particles interact. In the late 1940s the theory was plagued by calculations that produced infinite answers. Working at Cornell, Feynman developed a renormalization procedure and, crucially, a pictorial bookkeeping system now called Feynman diagrams, in which squiggles and lines represent particle interactions and translate directly into calculable mathematics ^[3][5]. For this work he shared the 1965 Nobel Prize in Physics with Julian Schwinger and Sin-Itiro Tomonaga, who had reached equivalent results by different routes ^[5].

The diagrams spread through physics with remarkable speed and remain a daily working tool in particle theory. QED itself became the most precisely tested theory in science, with predictions of quantities such as the electron's magnetic moment confirmed to extraordinary accuracy ^[3]. Any account of Richard Feynman achievements must also include his 1950s theory of superfluid liquid helium, explaining the strange frictionless behavior of helium cooled near absolute zero, and his work with Murray Gell-Mann on the V-A theory of the weak nuclear force ^[2][3].

In 1950 Feynman moved to the California Institute of Technology, where he stayed for the rest of his career. There he proposed the parton model in 1968, treating protons as bundles of point-like constituents, a picture that helped establish the reality of quarks after electron scattering experiments at Stanford ^[3]. His 1959 talk "There's Plenty of Room at the Bottom" imagined engineering at the atomic scale and is frequently cited as an early conceptual landmark for nanotechnology, and his early 1980s papers on simulating physics with quantum systems helped seed the field of quantum computing ^[6].

Between 1961 and 1963 Feynman delivered an introductory physics course at Caltech that was recorded, transcribed, and published as The Feynman Lectures on Physics. The three red volumes sold in the millions and are still read by students and working physicists, less as a textbook than as a demonstration of how a great physicist actually thinks ^[2][6]. Caltech students who never took a course from him packed his occasional lectures, drawn by a Far Rockaway accent and a showman's timing.

His smaller books reached even wider audiences. QED: The Strange Theory of Light and Matter (1985) explained his Nobel work to general readers using rotating arrows instead of equations. The Character of Physical Law, based on 1964 lectures at Cornell, examined what a scientific law is and why nature obeys mathematics ^[6]. In 1965 he had told interviewers that he considered teaching essential to his sanity as a researcher.

Feynman also served on the California curriculum commission in the early 1960s, reviewing school mathematics textbooks, and left a scathing account of books that dressed up emptiness in new jargon. Basic Richard Feynman facts often surprise newcomers: he was a serious amateur bongo drummer, took up figure drawing in middle age under the name "Ofey" and sold some works, and once cracked the safes holding atomic secrets at Los Alamos using guessed default combinations ^[1][2].

Feynman married three times. His first marriage, to his high school sweetheart Arline, ended with her death from tuberculosis in 1945. A second marriage in 1952, to Mary Louise Bell, ended in divorce four years later. In 1960 he married Gweneth Howarth, an Englishwoman he had met in Switzerland; the marriage lasted until his death, and the couple raised a son, Carl, born in 1962, and an adopted daughter, Michelle, born in 1968 ^[1][2].

He cultivated a reputation as a puzzle-solver and adventurer. He spent a sabbatical year in Brazil teaching in Rio de Janeiro and playing frigideira in a samba band, learned to read some Maya hieroglyphic astronomy, and pursued a long, half-joking campaign to visit Tannu Tuva, the remote Asian region whose triangular stamps he had collected as a boy. The trip was finally arranged, but the invitation arrived after his death ^[1][7].

His anecdotes, taped by his drumming partner Ralph Leighton, became the 1985 bestseller Surely You're Joking, Mr. Feynman! and its 1988 sequel What Do You Care What Other People Think? The books made him a popular icon, though some colleagues, and later biographers, noted that the self-portrait of the wisecracking outsider was itself a careful construction, and passages about his conduct toward women drew criticism ^[1][7].

In 1978 Feynman was diagnosed with a rare abdominal cancer, a liposarcoma, and surgeons removed a large tumor. Further operations followed over the next decade as the disease returned, along with a separate bone marrow cancer, Waldenstrom's macroglobulinemia ^[1][2].

His most public act came in 1986, when he reluctantly joined the Rogers Commission investigating the explosion of the space shuttle Challenger. Working partly outside the commission's official schedule, he traced the failure to the rubber O-ring seals in the solid rocket boosters. At a televised hearing he clamped a piece of O-ring material in ice water and showed that it lost resilience at low temperature, a demonstration that cut through weeks of testimony in under a minute ^[4][8]. His appendix to the commission's report criticized NASA management for risk estimates wildly out of line with those of its own engineers, ending with the observation that nature cannot be fooled ^[8].

Feynman continued teaching at Caltech almost to the end, giving his last lecture in 1987. He died at the UCLA Medical Center in Los Angeles on February 15, 1988, at age 69, after declining further surgery. His last recorded words were a joke about the tedium of dying twice ^[1].

Every Richard Feynman biography confronts the same double image: a physicist whose diagrams are drawn daily in every particle theory group on earth, and a public character whose stories still circulate among people who have never opened a physics book. The diagrams alone secure his scientific standing; historians of science credit them with changing how a generation calculated and even how it visualized the quantum world ^[3][5]. In a 1999 poll of physicists conducted by Physics World, respondents ranked him among the ten greatest physicists of all time ^[9].

His influence on scientific culture runs deeper than any single result. The Feynman Lectures remain freely available online through Caltech and continue to shape physics teaching. His insistence on honesty in research, set out in a 1974 Caltech commencement address on "cargo cult science," is quoted wherever scientists discuss integrity and self-deception ^[6]. Fields he only sketched, nanotechnology and quantum computation among them, grew into major research enterprises that claim him as an ancestor ^[6].

Feynman received the Albert Einstein Award in 1954, the E. O. Lawrence Award in 1962, and the Oersted Medal for teaching in 1972, and he was elected to the Royal Society as a foreign member in 1965. James Gleick's 1992 biography Genius and the 1996 film Infinity, along with a 2005 postage stamp bearing his diagrams, kept his name before the public ^[1][2]. More than three decades after his death, students still encounter physics through his eyes first.