Nuclear weapons and the United Kingdom weapons to be a joint discovery, but the American Atomic Energy Act of 1946 (McMahon Act) restricted other countries, including the UK, from access to information about nuclear weapons. Fearing the loss of Britain's great power status, the UK resumed its own project, now codenamed High Explosive Research. On 3 October 1952, it detonated an atomic bomb in the Monte Bello Islands of Western Australia in Operation Hurricane. Eleven more British nuclear weapons tests in Australia were carried out over the following decade, including seven British nuclear tests at Maralinga in 1956 and 1957. The British hydrogen bomb programme demonstrated
Las Vegas in the 1950s tests began at the Nevada Test Site, north of Las Vegas ( from downtown Las Vegas) on 27 January 1951. After it was shown on television on 22 April 1952, the Las Vegas town and the nation was gripped by the atomic fever and the Chamber of Commerce even brought out a calendar showing the vantage points to view the atomic sites. Atomic Cocktails, Atomic hair-dos, and Miss Atomic Blast beauty contests became popular with people in some of the casinos. Testing continued until the 1963 Test Ban Treaty came into effect and surface testing was banned and underground testing