Operation Grapple Burgess and Donald Maclean in 1951. Fearing a resurgence of American isolationism and Britain losing its great power status, the British government restarted its own 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. 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 Special Relationship were soon dashed. In November 1952, the United States conducted Ivy Mike, the first successful test of a
UK Clinical Aptitude Test UK Clinical Aptitude Test The UK Clinical Aptitude Test (UKCAT) is a test used in the selection process by a consortium of UK university Medical and Dental Schools. It is run by the UKCAT Consortium, currently chaired by Nigel Siesage, in partnership with Pearson VUE. It was first introduced in 2006. The test is designed to give information on the candidates' cognitive abilities through four reasoning tests, with a fifth test, the situational judgement test testing attitudes and professional behaviour. The test is used by the majority of UK universities to make more informed choices between medical and dental applicants.