Princeton Series in Physics

S. S. Schweber (1928–2017) was professor emeritus of physics and the Richard Koret Professor in the History of Ideas at Brandeis University and an associate in the Department of the History of Science at Harvard University. He was a fellow of the American Physical Society and the American Academy of Arts and Sciences. His books include Einstein for the 21st Century: His Legacy in Science, Art, and Modern Culture and QED and the Men Who Made It (both Princeton). How two charismatic, exceptionally talented physicists came to terms with the nuclear weapons they helped to create In 1945, the United States dropped the bomb, and physicists were forced to contemplate disquieting questions about their roles and responsibilities. When the Cold War followed, they were confronted with political demands for their loyalty and McCarthyism's threats to academic freedom. By examining how J. Robert Oppenheimer and Hans A. Bethe-two men with similar backgrounds but divergent aspirations and characters-struggled with these moral dilemmas, one of our foremost historians of physics tells the story of modern physics, the development of atomic weapons, and the Cold War. Oppenheimer and Bethe led parallel lives. Both received liberal educations that emphasized moral as well as intellectual growth. Both were outstanding theoreticians who worked on the atom bomb at Los Alamos. Both advised the government on nuclear issues, and both resisted the development of the hydrogen bomb. Both were, in their youth, sympathetic to liberal causes, and both were later called to defend the United States against Soviet communism and colleagues against anti-Communist crusaders. Finally, both prized scientific community as a salve to the apparent failure of Enlightenment values. Yet their responses to the use of the atom bomb, the testing of the hydrogen bomb, and the treachery of domestic politics differed markedly. Bethe, who drew confidence from scientific achievement and integration into the physics community, preserved a deep integrity. By accepting a modest role, he continued to influence policy and contributed to the nuclear test ban treaty of 1963. In contrast, Oppenheimer first embodied a new scientific persona-the scientist who creates knowledge and technology affecting all humanity and boldly addresses their impact-and then could not carry its burden. His desire to retain insider status, combined with his isolation from creative work and collegial scientific community, led him to compromise principles and, ironically, to lose prestige and fall victim to other insiders. S. S. Schweber draws on his vast knowledge of science and its history-in addition to his unique access to the personalities involved-to tell a tale of two men that will enthrall readers interested in science, history, and the lives and minds of great thinkers. "An absorbing investigation of how the two physicists, each formidable in his own way, attempted to shoulder responsibility for their creation." "Fascinating. . . . Gripping accounts that capture the essence of an era through panoramic detail."---Nicole Johnston, Globe & Mail "Offers intriguing insights into the creativity of [Oppenheimer and Bethe] and the shaping of their moral outlooks in the atomic age. How they balanced the ethical equation between uncovering truths about nature and inventing the most terrible weapons of mass destruction makes for fascinating reading."---P. D. Smith, The Guardian "For a world in which scientific power must be checked by visionary words linked to prudent politics, Schweber has written a book of compelling insight." "Schweber [worries] about the gap between moral ideals and moral realities among scientists who brought the Atomic Age into being and who lived with its postwar consequences. . . . [In the Shadow of the Bomb] contrasts Bethe's exemplary conduct with Oppenheimer's moral ambiguity."---Steven Shapin, London Review of Books "There is merit to Schweber's contrasting port