During World War II, Franklin D.Roosevelt and Winston Churchill pooled their nations' resources in the race to beat the Germans to the secret of the atomic bomb. This book tells the story of the British scientists who journeyed to Los Alamos to help develop the world's first nuclear weapons.

Launched in 1942, the Manhattan Project was a well-funded, secret effort by the United States, the United Kingdom, and Canada to develop an atomic bomb before the Nazis. The results--the bombs named "Little Boy" and "Fat Man"--were dropped on Hiroshima and Nagasaki in August of 1945. A vast state within a state, the Manhattan Project employed 130,000 people and cost the United States and its allies 2 billion dollars, but its contribution to science as a prestigious investment was invaluable. After the bombs were dropped, states began allocating unprecedented funds for scientific research, leading to the establishment of many of twentieth century's major research institutions. Yet the union of science, industry, and the military did not start with the development of the atomic bomb; World War II only deepened the relationship. This absorbing history revisits the interactions among science, the national interest, and public and private funding that was initiated in World War I and flourished in WWII. It then follows the Manhattan Project from inception to dissolution, describing the primary influences that helped execute the world's first successful plan for nuclear research and tracing the lineages of modern national nuclear agencies back to their source.

The development of atomic bombs under the auspices of the U.S. Army’s Manhattan Project during World War II is considered to be the outstanding news story of the twentieth century. In this book, a physicist and expert on the history of the Project presents a comprehensive overview of this momentous achievement. The first three chapters cover the history of nuclear physics from the discovery of radioactivity to the discovery of fission, and would be ideal for instructors of a sophomore-level “Modern Physics” course. Student-level exercises at the ends of the chapters are accompanied by answers. Chapter 7 covers the physics of first-generation fission weapons at a similar level, again accompanied by exercises and answers. For the interested layman and for non-science students and instructors, the book includes extensive qualitative material on the history, organization, implementation, and results of the Manhattan Project and the Hiroshima and Nagasaki bombing missions. The reader also learns about the legacy of the Project as reflected in the current world stockpiles of nuclear weapons. This second edition contains important revisions and additions, including a new chapter on the German atomic bomb program and new sections on British and Canadian contributions to the Manhattan project and on feed materials. Several other sections have been expanded; reader feedback has been helpful in introducing minor corrections and improved explanations; and, last but not least, the second edition includes a detailed index.

Perhaps no scientific development has shaped the course of modern history as much as the harnessing of nuclear energy. Yet the twentieth century might have turned out differently had greater influence over this technology been exercised by Great Britain, whose scientists were at the forefront of research into nuclear weapons at the beginning of World War II. As award-winning biographer and science writer Graham Farmelo describes in Churchill's Bomb, the British set out to investigate the possibility of building nuclear weapons before their American colleagues. But when scientists in Britain first discovered a way to build an atomic bomb, Prime Minister Winston Churchill did not make the most of his country's lead and was slow to realize the Bomb's strategic implications. This was odd -- he prided himself on recognizing the military potential of new science and, in the 1920s and 1930s, had repeatedly pointed out that nuclear weapons would likely be developed soon. In developing the Bomb, however, he marginalized some of his country's most brilliant scientists, choosing to rely mainly on the counsel of his friend Frederick Lindemann, an Oxford physicist with often wayward judgment. Churchill also failed to capitalize on Franklin Roosevelt's generous offer to work jointly on the Bomb, and ultimately ceded Britain's initiative to the Americans, whose successful development and deployment of the Bomb placed the United States in a position of supreme power at the dawn of the nuclear age. After the war, President Truman and his administration refused to acknowledge a secret cooperation agreement forged by Churchill and Roosevelt and froze Britain out of nuclear development, leaving Britain to make its own way. Dismayed, Churchill worked to restore the relationship. Churchill came to be terrified by the possibility of thermonuclear war, and emerged as a pioneer of detente in the early stages of the Cold War. Contrasting Churchill's often inattentive leadership with Franklin Roosevelt's decisiveness, Churchill's Bomb reveals the secret history of the weapon that transformed modern geopolitics.

**Winner of the Pulitzer Prize, the National Book Award, and the National Book Critics Circle Award** The definitive history of nuclear weapons—from the turn-of-the-century discovery of nuclear energy to J. Robert Oppenheimer and the Manhattan Project—this epic work details the science, the people, and the sociopolitical realities that led to the development of the atomic bomb. This sweeping account begins in the 19th century, with the discovery of nuclear fission, and continues to World War Two and the Americans’ race to beat Hitler’s Nazis. That competition launched the Manhattan Project and the nearly overnight construction of a vast military-industrial complex that culminated in the fateful dropping of the first bombs on Hiroshima and Nagasaki. Reading like a character-driven suspense novel, the book introduces the players in this saga of physics, politics, and human psychology—from FDR and Einstein to the visionary scientists who pioneered quantum theory and the application of thermonuclear fission, including Planck, Szilard, Bohr, Oppenheimer, Fermi, Teller, Meitner, von Neumann, and Lawrence. From nuclear power’s earliest foreshadowing in the work of H.G. Wells to the bright glare of Trinity at Alamogordo and the arms race of the Cold War, this dread invention forever changed the course of human history, and The Making of The Atomic Bomb provides a panoramic backdrop for that story. Richard Rhodes’s ability to craft compelling biographical portraits is matched only by his rigorous scholarship. Told in rich human, political, and scientific detail that any reader can follow, The Making of the Atomic Bomb is a thought-provoking and masterful work.

The incredible true story of a British physicist who was an undercover spy for the Soviets. The world first heard of Klaus Fuchs, the head of theoretical physics at the British Research Establishment at Harwell in February 1950 when he appeared at the Old Bailey, accused of passing secrets to the Soviet Union. For over sixty years disinformation and lies surrounded the story of Klaus Fuchs as the Governments of Britain, the United States and Russia all tried to cover up the truth about his treachery. Piecing together the story from archives in Britain, the United States, Russia and Germany, The Spy Who Changed the World unravels the truth about Fuchs and reveals for the first time his long career of espionage. It proves that he played a pivotal role in Britain's bomb program in the race to keep up with the United States in the atomic age, and that he revealed vital secrets about the atom bomb, as well as the immensely destructive hydrogen bomb to the Soviet Government. It is a dramatic tale of clandestine meetings, deadly secrets, family entanglements and illicit love affairs, all set against the tumultuous years from the rise of Hitler to the start of the Cold War.