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John von Neumann (1903–1957)

Basic Facts

  • Full name: Neumann János Lajos (later John von Neumann)
  • Born: 28 December 1903, Budapest, Kingdom of Hungary, Austria-Hungary
  • Died: 8 February 1957, Walter Reed Army Medical Hospital, Washington, D.C.
  • Cause of death: Cancer (bone, pancreatic, or prostate – sources differ on primary site), possibly caused by radiation exposure at Los Alamos
  • Buried: Princeton Cemetery, Princeton, New Jersey

Family Background

Von Neumann was born into a wealthy, non-observant Jewish family. His father, Neumann Miksa (Max von Neumann), was a banker with a law doctorate who had relocated to Budapest from Pecs in the late 1880s. His mother was Kann Margit (Margaret Kann). He was the eldest of three brothers: Mihaly (Michael) and Miklos (Nicholas). The family occupied an 18-room apartment on the top floor of the Kann-Heller offices in Budapest.

On 20 February 1913, Emperor Franz Joseph elevated the family to Hungarian nobility, granting the hereditary title “Margittai” (of Margitta, now Marghita, Romania). His parents and siblings later emigrated to the United States in 1939.

Education

  • 1914: Entered the Lutheran Fasori Evangelikus Gimnazium in Budapest; befriended Eugene Wigner there.
  • Age 15: Began studying advanced calculus under analyst Gabor Szego, who was reportedly brought to tears by the boy’s talent.
  • Age 19: Published two major mathematical papers; his second provided the modern definition of ordinal numbers.
  • 1923: Passed entrance exam to ETH Zurich in chemical engineering; simultaneously enrolled at Pazmany Peter University (Budapest) as a Ph.D. mathematics candidate.
  • 1926: Graduated as chemical engineer from ETH Zurich; passed Ph.D. examinations summa cum laude at Budapest with minors in experimental physics and chemistry. His doctoral thesis provided an axiomatization of Cantor’s set theory.
  • 1926–1927: Studied at University of Gottingen under David Hilbert on a Rockefeller Foundation grant.

Career Timeline

  • 13 December 1927: Completed habilitation.
  • 1928: Began lectures as Privatdozent at the University of Berlin – the youngest person elected Privatdozent in that university’s history. Published the minimax theorem (“Zur Theorie der Gesellschaftsspiele”), founding modern game theory.
  • 1929: Briefly at University of Hamburg; then moved to Princeton University as visiting lecturer in mathematical physics.
  • 1930: Married Marietta Kovesi (economist); baptized Catholic. Arrived in the United States.
  • 1933: Accepted tenured professorship at the newly founded Institute for Advanced Study. At 30, he was the youngest professor there, “frequently mistaken for a graduate student.”
  • 1937: Became naturalized U.S. citizen.
  • 1938: Divorced Marietta (2 November 1937); married Klara Dan (17 November 1938). Awarded Bocher Memorial Prize.
  • 1943: Joined the Manhattan Project at Los Alamos (September). Demonstrated that implosion design was faster and more efficient than gun-type design.
  • 1944: Chance encounter with Herman Goldstine on a train platform at Aberdeen; became consultant to the ENIAC project at the Moore School.
  • 1945: Wrote the “First Draft of a Report on the EDVAC” (distributed 30 June 1945), providing the first theoretical description of a stored-program computer – what became known as the “von Neumann architecture.” The authorship controversy – Goldstine listed only von Neumann’s name, omitting Eckert and Mauchly – reverberates to this day.
  • 1946: Launched the Electronic Computer Project at the Institute for Advanced Study, with Julian Bigelow as chief engineer. Received Navy Distinguished Civilian Service Award and Medal for Merit.
  • 1946–1950s: Advocated vigorously for applying electronic computing to weather prediction and climate modeling. Recruited Jule Charney to Princeton to lead a Meteorology Group.
  • 1950: The first computer weather forecast was run on ENIAC under the Meteorology Project (Charney, Fjortoft, and von Neumann). Klara von Neumann wrote and checked the final code.
  • October 1955: Organized the Princeton conference “Application of Numerical Integration Techniques to the Problem of the General Circulation,” galvanizing the meteorological community. This directly led to the founding of what became GFDL (Geophysical Fluid Dynamics Laboratory), with Joseph Smagorinsky recruited to head it under the U.S. Weather Bureau.
  • 15 March 1955: Appointed to the U.S. Atomic Energy Commission.
  • 1955: Diagnosed with cancer. A mass was discovered near his collarbone.
  • 1956: Received the Medal of Freedom and the Enrico Fermi Award. Confined to a wheelchair; continued working on AEC business.
  • 8 February 1957: Died at Walter Reed Army Medical Hospital at age 53. Received the Carl-Gustaf Rossby Research Medal posthumously.

Major Contributions

Mathematics

  • Set theory: Axiom of foundation, class theory, axiomatization of Cantor’s set theory (1925 doctoral thesis).
  • Quantum mechanics: Mathematical framework including von Neumann entropy, density matrix formalism, measurement scheme, and quantum logic.
  • Functional analysis: First to axiomatically define abstract Hilbert space; developed spectral theory of operators.
  • Operator algebras: Founded the study of von Neumann algebras (W*-algebras); six masterpiece papers (1936–1940).
  • Ergodic theory: Foundational contributions in 1932. Paul Halmos declared these alone “would have been sufficient to guarantee him mathematical immortality.”
  • Lattice theory and continuous geometry: Garrett Birkhoff noted his mind “blazed over lattice theory like a meteor.”

Game Theory

  • Proved the minimax theorem in 1928.
  • With Oskar Morgenstern, wrote Theory of Games and Economic Behavior (1944), the foundational text of the field.

Computing

  • The “First Draft” report on EDVAC (1945) described the stored-program concept.
  • Led the IAS computer project (1946–1952), with Julian Bigelow as chief engineer. The IAS machine’s design was freely published, leading to approximately 15 clones worldwide and influencing all subsequent general-purpose computer architecture.

Weather and Climate Computing

  • Recognized that electronic computers could transform meteorology. Recruited Jule Charney and organized the Meteorology Project at IAS.
  • The 1950 ENIAC weather forecast was the first numerical weather prediction by electronic computer.
  • The 1955 Princeton conference led to GFDL and modern climate modeling.

Self-Reproducing Automata

  • In lectures at the University of Illinois (1949), posed the question of what threshold of complexity must be crossed for machines to evolve. Designed an abstract self-replicating machine in a cellular automaton (prompted by Stanislaw Ulam’s suggestions).
  • His work was published posthumously as Theory of Self-Reproducing Automata (1966, completed by Arthur W. Burks).

Manhattan Project and Defense

  • Designed the explosive lenses for the implosion bombs used in the Trinity test and the Fat Man bomb (Nagasaki).
  • Served on the Target Selection Committee.
  • Post-war: consulted for Office of Scientific Research and Development, Army Ballistic Research Laboratory, Armed Forces Special Weapons Project, Oak Ridge National Laboratory.
  • Chaired the Strategic Missile Evaluation Committee and the ICBM Scientific Advisory Committee; played a key role in America’s first ICBM programs.
  • By the 1950s, was “the nation’s foremost expert on nuclear weaponry.”

Personality, Anecdotes, and Quotes

Photographic Memory

By age eight, he reportedly understood differential and integral calculus. By twelve, he had read Borel’s La Theorie des Fonctions. For a family party trick, he could quickly memorize a page from a telephone book and recite its numbers and addresses. He could recite verbatim books he had read years earlier.

Parties and Social Life

John and Klara held a party nearly every week, turning their white clapboard house on Westcott Road – “one of Princeton’s largest private residences” – into a social salon. He could attend parties until the early hours and still deliver lectures at 8:30 a.m. He used his phenomenal memory to compile an immense library of jokes, with a strong preference for off-color humor and Yiddish comedy. Stanislaw Ulam noted he had “a strong appreciation (one might say almost a hunger) for the more earthy type of comedy and humor.”

Driving

Von Neumann was notoriously reckless behind the wheel, reportedly totaling his car approximately once a year. One Princeton intersection became known as “Von Neumann corner” for all the accidents he had there. After one crash he explained: “I was proceeding down the road. The trees on the right were passing me in orderly fashion at 60 MPH. Suddenly, one of them stepped out in my path. Boom!” The cause was peculiar: rather than drinking and driving, he sang and drove, swaying and turning the steering wheel in time with the music. He also read books while driving, resulting in countless tickets.

Clothing and Eating

He invariably wore a grey Oxford three-piece suit – even while playing tennis with Ulam or riding a donkey down the Grand Canyon. He ate gluttonously and grew progressively heavier; a friend quipped he “could count anything but calories.”

Working Style

He did some of his best work in noisy, chaotic environments. Colleagues complained about his playing extremely loud German march music on his office gramophone – Albert Einstein, next door, was “exceptionally irked.” Ulam suspected his thinking was “more aural” than visual. He often went to sleep with a problem unsolved and knew the answer upon waking.

Languages

Fluent in Hungarian, French, German, and English. Maintained conversational Italian, Yiddish, Latin, and Ancient Greek. Possessed encyclopedic knowledge of ancient history and enjoyed reading Ancient Greek historians in the original.

Colleagues’ Words

  • Hans Bethe: “I have sometimes wondered whether a brain like von Neumann’s does not indicate a species superior to that of man.”
  • Eugene Wigner wrote that he “perhaps supervised more work (in a casual sense) than any other modern mathematician.”

Generosity

Known for always being happy to provide scientific and mathematical advice to people of all ability levels.

Death: Walter Reed and the Military Guard

In 1955, von Neumann was diagnosed with metastatic cancer – possibly originating in the skeleton, pancreas, or prostate. The malignancy may have resulted from radiation exposure at Los Alamos. As the cancer spread to his brain and his mental faculties deteriorated, the government placed him under military security at Walter Reed Army Medical Hospital, lest he reveal classified military and nuclear secrets while heavily medicated or delirious. He was terrified of death and unable to accept it. He requested a Catholic priest but found little comfort in last rites. His famous remark on religion reflected Pascal’s wager: “So long as there is the possibility of eternal damnation for nonbelievers it is more logical to be a believer at the end.”

He died on 8 February 1957, aged 53.

Personal Life

  • First marriage: Marietta Kovesi (1930; divorced 2 November 1937). One daughter, Marina von Neumann (born 1935), who became a professor.
  • Second marriage: Klara Dan (17 November 1938 – his death in 1957).

Awards and Honors

  • Bocher Memorial Prize (1938)
  • Navy Distinguished Civilian Service Award (1946)
  • Medal for Merit (1946)
  • Elected President of the American Mathematical Society
  • Medal of Freedom (1956)
  • Enrico Fermi Award (1956)
  • Carl-Gustaf Rossby Research Medal (1957, posthumous)
  • Lunar crater named in his honor

Connections to Others in the Story

  • Klara Dan von Neumann: Second wife; coded the ENIAC weather forecast and MANIAC programs.
  • Herman Goldstine: The Army liaison who introduced him to ENIAC on a train platform at Aberdeen in 1944; later assistant/director of the IAS computer project.
  • Adele Goldstine: Wrote the ENIAC manual; collaborated on stored-program conversion.
  • Julian Bigelow: Chief engineer of the IAS machine, hired on Norbert Wiener’s recommendation.
  • J. Presper Eckert and John Mauchly: ENIAC’s designers; the “First Draft” controversy over credit for the stored-program concept soured the relationship.
  • Jule Charney: Led the Meteorology Group at IAS; ran the 1950 ENIAC weather forecast.
  • Joseph Smagorinsky: Recruited by von Neumann to head what became GFDL.

Sources