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
Atomic Mom Oakland, California. "Atomic Mom" is a documentary film written and directed by M.T Silvia, which focuses on the connection between two mothers that are each on a different end of the Hiroshima atomic warfare spectrum: Pauline Silvia, a United States Navy biologist, and one of the only women scientists present during the 1953 radiation detonations of Operation Upshot–Knothole at the then-Nevada Test Site, and Emiko Okada, a Japanese woman who was exposed to radiation from the Hiroshima nuclear bombings as a child. Atomic Mom also offers a comparison of the Hiroshima Peace Memorial Museum and the Atomic Testing Museum in