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
Bulletin of the Atomic Scientists as a not-for-profit 501(c)(3) organization to serve as the parent organization and fundraising mechanism of the "Bulletin". In 2003, the Board of Directors voted to change the foundation's name to Bulletin of the Atomic Scientists. The "Bulletin of the Atomic Scientists" began as an emergency action undertaken by scientists who saw urgent need for an immediate educational program about atomic weapons. The intention was to educate fellow scientists about the relationship between their world of science and the world of national and international politics. A second was to help the American people understand what nuclear energy and its possible applications