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
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