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
Life in the United Kingdom test test earlier than other immigrants were abandoned by the then Immigration Minister, Tony McNulty. The test lasts for 45 minutes, during which time the candidate is required to answer 24 multiple-choice questions. To pass the test, the candidate must receive a grade of 75% or higher, i.e. at least 18 correct answers to the 24 questions. Testing is not directly administered by UK Visas and Immigration (which replaced the UK Border Agency in 2013), but is carried out by learndirect, a private company. As of 18 October 2014 the cost of the test is £50. From November 2005 to March