Freedom of Information Act requests to the FBI, CIA, Department of the Army, and Department of Energy in 1988 and 1989. Some of the State Department correspondence is also in CIT. On superfluidity, Robert Schrieffer, Hans Bethe, Michael Fisher, and Russell Donnelly were especially helpful. Donnelly sent written reminiscences by several colleagues. Andronikashvili 1990 is a remarkable memoir from the Russian perspective. For the particle physics of the 1950s and 1960s: the Rochester conference proceedings; John Polkinghorne’s witty memoir (1989) and Jeremy Bernstein’s “informal history” (1989); Robert Marshak’s account (1970); Brown, Dresden, and Hoddeson’s symposium proceedings Pions to Quarks: Particle Physics in the 1950s; and interviews with the various scientists cited. Again, some material on personal relationships is based on letters and interviews that I cannot cite specifically for reasons of privacy. Feynman’s thinking on gravitation can be seen in a fifteen-page letter to Victor Weisskopf written in January and February 1961 (WHE) and in his Faraday lecture (1961b), as well as his one published paper (1965b) and various lecture notes in CIT. The development of quarks and partons has been well chronicled from different points of view by Andrew Pickering (1984) and Michael Riordan (1987); Feynman kept his notes from this period in unusually good order (CIT); Riordan and Burton Richter provided useful on-site guidance at the Stanford Linear Accelerator Center; James Bjorken, George Zweig, Sidney Drell, Yung-Su Tsai, and, of course, Murray Gell-Mann were among those with especially helpful reminiscences. For the record of Feynman’s illnesses I relied on notes and correspondence in his files and interviews with Drs. C. M. Haskell, William C. Bradley, and In Chang Kim. For the investigation into the Challenger accident: the hearing transcripts and documentation as published in the commission report; Feynman’s personal notes and commission memorandums (CIT and PERS); Ralph Leighton’s unedited transcript of Feynman’s oral account (later published in WDY); interviews with commissioners, NASA officials and engineers, and others (only William P. Rogers refused to make himself available, despite my repeated requests for an interview). Carl Feynman shared the manuscript of the paper Feynman was working on until he entered the hospital for the last time.
281 THE CALIFORNIA INSTITUTE OF TECHNOLOGY: J. Goodstein 1991, 180.
281 PASADENA IS TEN MILES FROM LOS ANGELES: Morrow Mayo, quoted in Scheid 1986, 156.
281 EVERY LUNCHEON, EVERY DINNER: Letter to the Editor, Los Angeles Times, 6 March 31, quoted in J. Goodstein 1991, 100.
282 COULD IT BE THAT NITROGEN HAS TWO LEVELS: F-W, 559.
282 DEAR FERMI: Feynman to Enrico Fermi, 19 December 1951; Fermi to Feynman, 18 January 1952 and 28 April 1952, AIR Some of Feynman’s meson work that year emerges in Lopes and Feynman 1952.
282 DON’T BELIEVE ANY CALCULATION: Feynman to Fermi, 19 December 1951.
283 IN RECENT YEARS SEVERAL NEW PARTICLES: Fermi and Yang 1949, 1739. 283 HE COULD SPEND DAYS AT THE BEACH: Lopes, personal communication.
283 I WISH I COULD ALSO REFRESH: Fermi to Feynman, 18 January 1952, AIR
283 FEYNMAN TAUGHT BASIC ELECTROMAGNETISM: Feynman 1963a.
284 LIGHT IMPINGING ON A MATERIAL: Ibid., 26.
284 BUT WHEN HE ASKED WHAT WOULD HAPPEN: SYJ, 192.
284 THEY COULD DEFINE “TRIBOLUMINESCENCE": Even in his sixties he continued to consider ways of intensifying this phenomenon in the substances he described as “WL (Wint-o-green Lifesavers) and S (sucrose).” Feynman to J. Thomas Dick-enson, 13 May 1985, CIT.
284 HAVE YOU GOT SCIENCE?: SYJ, 197.
284 WHAT ARE THE FOUR TYPES OF TELESCOPE?: Feynman 1963a, 24.
284 HE WOULD SIT IDLY AT A CAFÉ TABLE: Joan Feynman, interview.
284 GIVES A FEELING OF STABILITY: Feynman 1963a, 24.
285 PHILIP MORRISON, WHO SHARED AN OFFICE: Morrison, interview.
286 HE JOINED A LOCAL SCHOOL: SYJ, 185.
286 IN THE 1952 CARNEVAL: Lopes, personal communication.
287 HE HEARD FROM HARDLY ANYONE: F-W, 564; Feynman to Oppenheimer, 27 May 1952, OPR
287 HE