British hydrogen bomb programme Atomic Energy Act of 1946 (also known as the McMahon Act) ended technical cooperation. Fearing a resurgence of American isolationism, and the loss of Britain's great power status, the British government resumed its own development effort, which was codenamed "High Explosive Research". The successful nuclear test of a British atomic bomb in Operation Hurricane in October 1952 represented an extraordinary scientific and technological achievement. Britain became the world's third nuclear power, reaffirming the country's status as a great power, but hopes that the United States would be sufficiently impressed to restore the nuclear Special Relationship were soon dashed. In November
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