Genius: The Life and Science of Richard Feynman

Genius: The Life and Science of Richard Feynman is a biography by the science writer James Gleick, tracing the life and scientific achievements of the American theoretical physicist Richard Feynman (1918–1988), from his childhood in Far Rockaway, New York, to his death from cancer at 69.

Gleick opens at the 1948 Pocono conference, where the elite of physics, including Niels Bohr, Enrico Fermi, and J. Robert Oppenheimer, gathered to confront a crisis in quantum electrodynamics (QED), the theory of interactions between light and matter. QED's equations produced nonsensical infinite results beyond rough approximations. Julian Schwinger, Feynman's exact contemporary at Harvard, delivered a virtuoso but dense solution. Feynman followed with a radically different approach built on unfamiliar diagrams and physical pictures, including particles traveling backward in time. The audience could not follow him, and Bohr lectured him on the uncertainty principle, the quantum-mechanical limit on how precisely certain paired properties of a particle can be simultaneously known. Yet Feynman had found what eluded his elders: a formulation that would earn him a Nobel Prize and reshape theoretical physics.

From this frame, Gleick turns to Feynman's origins. Richard grew up in Far Rockaway, a self-contained village of Jewish immigrant families on Long Island's south shore. His father, Melville, a uniform salesman who had dreamed of a scientific career, taught him to observe nature directly and distrust jargon. Two formative lessons stayed with Feynman: Knowing the name of a bird tells you nothing about the bird, and the word "inertia" is merely a label, not an explanation. Richard filled his childhood with electrical tinkering, recruited his younger sister Joan as a laboratory assistant, and taught himself calculus by 15. When Richard was five, his infant brother Henry died, a loss that shadowed the household and introduced the theme of mortality that recurs throughout the book.

At MIT (1935–1939), Feynman switched from mathematics to electrical engineering, then to physics, finding pure math too abstract. He and a classmate, T. A. Welton, taught themselves quantum mechanics by mailing a notebook back and forth. His senior thesis produced a discovery, later known as Feynman's theorem, showing that forces on atomic nuclei could be calculated directly from surrounding electron distributions. Anti-Semitic quotas complicated his graduate applications, but Princeton accepted him on the strength of his physics scores.

At Princeton, Feynman became the protégé of the young professor John Archibald Wheeler. Together they developed a radical theory proposing that charged particles interact directly, with signals traveling both forward and backward in time, eliminating the electromagnetic field as an independent entity. More consequentially, Feynman discovered, through a 1933 paper by the physicist Paul Dirac, a way to reformulate quantum mechanics using the principle of least action, the idea that physical systems evolve along paths that minimize a quantity called the action. Expressing a particle's behavior as a sum over all possible paths through space and time, Feynman created the "path-integral" approach that became his doctoral thesis and the foundation of his later breakthroughs.

His romance with Arline Greenbaum deepened as her health deteriorated. After a series of misdiagnoses, tuberculosis of the lymphatic system was identified. Over both families' opposition, Feynman married Arline in a quiet civil ceremony in 1942 and drove her to a charity hospital. Shortly afterward, the physicist Robert Wilson recruited him into the Manhattan Project, the secret effort to build an atomic bomb.

At Los Alamos, Feynman became a group leader in the theoretical division headed by Hans Bethe, a distinguished nuclear physicist. Their collaboration produced the Bethe-Feynman formula for bomb efficiency. Feynman tackled critical-mass calculations, organized teams of human calculators, and was sent to the Oak Ridge uranium-processing plant in Tennessee to address a dangerous safety situation: Workers were unknowingly accumulating enriched uranium in configurations that risked a chain reaction. Oppenheimer called him "by all odds the most brilliant young physicist here" (184). Throughout, Feynman visited Arline at her sanatorium in Albuquerque. She died on June 16, 1945. A month later, he watched the Trinity test, the first detonation of an atomic bomb. He joined the celebration but privately calculated the grim implications of nuclear weapons.

At Cornell after the war, Feynman sank into depression and creative paralysis. His father died in October 1946, and that same month he wrote a love letter to Arline, never mailed, revealing his unresolved grief. A turning point came when a spinning cafeteria plate caught his eye; working out the physics of its wobble reconnected him with playful inquiry. The 1947 Shelter Island conference provided concrete data: The Lamb shift, a tiny discrepancy in hydrogen energy levels, demanded theoretical explanation. Feynman developed his path-integral formulation into a complete quantum electrodynamics. His "Feynman diagrams," simple space-time sketches of particle interactions, became the field's standard computational tool. Freeman Dyson, a brilliant young Englishman who had befriended Feynman at Cornell, published a paper proving the equivalence of Feynman's and Schwinger's approaches, winning broad acceptance for Feynman's methods.

In 1950, Feynman moved to the California Institute of Technology (Caltech), where he spent the rest of his career. He took a sabbatical year in Brazil, teaching physics and criticizing the country's reliance on rote memorization over genuine understanding. A brief, unhappy marriage to Mary Louise Bell ended in divorce in 1956. His life stabilized with his 1960 marriage to Gweneth Howarth, a young Englishwoman he met in Geneva; they had a son, Carl, and adopted a daughter, Michelle.

Gleick organizes the Caltech decades thematically. Feynman's theory of superfluidity, the frictionless flow of liquid helium near absolute zero, produced a vivid picture of quantized vortex lines. His collaboration with Murray Gell-Mann, a culturally omnivorous physicist who arrived at Caltech in 1955, yielded a landmark 1958 paper on weak interactions, the force governing radioactive decay. Gell-Mann proposed "quarks" as fundamental constituents of matter; Feynman, approaching the same territory from a different angle, invented "partons" to describe pointlike objects inside protons. The two conceptions eventually merged in modern particle physics. From 1961 to 1963, Feynman taught introductory physics to Caltech freshmen; the resulting Feynman Lectures on Physics proved too difficult for undergraduates but reshaped how professional physicists understood their field. He also delivered a visionary 1959 lecture proposing atomic-scale engineering, effectively founding the field later called nanotechnology.

Gleick devotes a passage to the concept of genius itself, tracing the word's history and arguing that the modern proliferation of talented scientists has made towering individual genius increasingly rare. In 1985, Feynman's anecdotal memoirs, Surely You're Joking, Mr. Feynman!, became a bestseller, cementing his public image as an irreverent trickster.

In 1978, Feynman was diagnosed with a rare abdominal cancer. Despite subsequent surgeries and a second cancer diagnosis, he served on the presidential commission investigating the 1986 Challenger space shuttle disaster. His televised demonstration, dunking a piece of rubber O-ring seal into ice water to show its loss of resilience at freezing temperatures, became an iconic moment of public science. Feynman's appendix to the commission report concluded: "For a successful technology, reality must take precedence over public relations, for nature cannot be fooled" (428).

In his final years, Feynman resisted the rhetoric of grand unified theories, hypothetical frameworks combining all fundamental forces of nature. He argued that the standard model of particle physics was not truly unified but three theories joined together. He refused further dialysis and died on February 15, 1988. His last reported words were: "I'd hate to die twice. It's so boring" (438).