In the Shadow of the Bomb narrates how two charismatic, exceptionally talented physicists--J. Robert Oppenheimer and Hans A. Bethe--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 Oppenheimer and 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.
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.
Open a survey-textbook treatment of the development of the atomic and hydrogen bombs, and you will certainly encounter J. Robert Oppenheimer's name within the first few lines. The contributions of Hans A. Bethe, a gifted physicist who fled Nazi Germany and was quickly recruited for the Allied cause, were arguably no less important than Oppenheimer's. But, writes Silvan Schweber--himself a physicist who studied at Princeton University while Albert Einstein and Oppenheimer were in residence there--Bethe has been largely forgotten, and perhaps not accidentally.
Oppenheimer, Schweber suggests, was so attentive to seeking fame and influence that he was too quickly willing to compromise his principles on such matters as the use of atomic weaponry in warfare. His nadir came when, testifying before Joseph McCarthy's House Un-American Activities Committee in 1949, Oppenheimer denounced several of his colleagues as Communist sympathizers--and this from a man who had been closely involved in leftist politics before World War II. By contrast, Bethe, as Schweber writes admiringly in this study of the two scientists' lives and work, went out of his way to "act courageously in the interests of community and humankind," in both the scientific and political realms. Troubled by his role in creating weapons of mass destruction and intent on taking morally correct actions, Bethe spent much of his postwar energies quietly arguing for arms reduction, an effort that contributed to the international nuclear test ban treaty of 1963. --Gregory McNamee
