Operation Grapple with the American Manhattan Project in August 1943. Many of Britain's top scientists participated in the British contribution to the Manhattan Project. After the war, fearing that Britain would lose its great power status, the British government resumed the atomic bomb development effort, now codenamed High Explosive Research. The successful test of an atomic bomb in Operation Hurricane in October 1952 represented an extraordinary scientific and technological achievement, but Britain was still several years behind the United States in nuclear weapons technology. In July 1954, the Cabinet decided to develop the hydrogen bomb. The United Kingdom Atomic Energy Authority Atomic
Trinity: A Graphic History of the First Atomic Bomb the United States founds covertly Los Alamos National Laboratory and other cities to create nuclear weapons. The scientists and their families are sworn to secrecy. Soon, the scientists at Los Alamos discover how to create a nuclear chain reaction, leading to the development of the first atomic weapons: Little Boy and Fat Man. Soon, the day of the Trinity test arrives, and President Truman receives notice at the Potsdam Conference in Potsdam, Germany. Although it has ended in Europe, the war continues in the Pacific, with Japan refusing to surrender even after the aerial raid of Tokyo. The author briefly