the United States to Elugelab for assembly. Work was completed on October 31, at 5.00 p.m. Within an hour, personnel were evacuated in preparation for the blast. Detonation The test was carried out on 1 November 1952 at 07:15 local time (19:15 on 31 October, Greenwich Mean Time). It produced a yield of . However, of the final yield came from fast fission of the uranium tamper, which produced large amounts of radioactive fallout. The fireball created by the explosion had a maximum radius of . The maximum radius was reached a number of seconds after the detonation, during which the hot fireball lifted up due to buoyancy. While still relatively close to the ground, the fireball had yet to reach its maximum dimensions and was thus approximately wide. The mushroom cloud rose to an altitude of in less than 90 seconds. One minute later it had reached , before stabilizing at with the top eventually spreading out to a diameter of with a stem wide. The blast created a crater in diameter and deep where Elugelab had once been; the blast and water waves from the explosion (some waves up to high) stripped the test islands clean of vegetation, as observed by a helicopter survey within 60 minutes after the test, by which time the mushroom cloud and steam were blown away. Radioactive coral debris fell upon ships positioned away, and the immediate area around the atoll was heavily contaminated. Close to the fireball, lightning discharges were rapidly triggered. The entire shot was documented by the filmmakers of Lookout Mountain studios. A post-production explosion sound was overdubbed over what was a completely silent detonation from the vantage point of the camera, with the blast wave sound only arriving a number of seconds later, as akin to thunder, with the exact time depending on its distance. The film was also accompanied by powerful, Wagner-esque music featured on many test films of that period and was hosted by actor Reed Hadley. A private screening was given to President Dwight D. Eisenhower who had succeeded President Harry S. Truman in January 1953. In 1954, the film was released to the public after censoring, and was shown on commercial television channels. Edward Teller, perhaps the most ardent supporter of the development of the hydrogen bomb, was in Berkeley, California, at the time of the shot. He was able to receive first notice that