Operation Totem status, the British government restarted its own development effort, which was given the cover name "High Explosive Research". The first British atomic bomb was tested in Operation Hurricane at the Montebello Islands in Western Australia on 3 October 1952. The main purpose of the trial was to determine the acceptable limit on the amount of plutonium-240 which could be present in a bomb. The plutonium used in the original Hurricane device was produced in the nuclear reactor at Windscale, but the Windscale Piles did not have anything like the capacity to provide sufficient material for the British government's planned weapons
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