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In subsequent atmospheric nuclear tests at the Nevada Test Site, United States Atomic Energy Commission officials gave the photographic industry maps and forecasts of potential contamination, as well as expected fallout distributions, which enabled them to purchase uncontaminated materials and take other protective measures.
The McDonald Ranch House in the Oscura Mountains of Socorro County, New Mexico, was the location of assembly of the world's first nuclear weapon.The active components of the Trinity test "gadget", a plutonium Fat Man-type bomb similar to that later dropped on Nagasaki, Japan, were assembled there on July 13, 1945.
Nevada National Security Site (formerly known as Nevada Test Site, NTS) A nuclear test site carved out of the Nevada Test and Training Range in Nye County, Nevada in 1952. Roughly the size of Rhode Island, it contains many terrains in which various bombs can be tested. Frenchman Flat, Areas 5, 11
Jul. 14—The Trinity Test was the first nuclear explosion in history. On July 16, 1945, Los Alamos scientists set off the first atomic bomb in New Mexico's desert. That test is part of a legacy ...
Trinity, part of Project Manhattan, was the first ever nuclear explosion. The nuclear weapons tests of the United States were performed from 1945 to 1992 as part of the nuclear arms race. The United States conducted around 1,054 nuclear tests by official count, including 216 atmospheric, underwater, and space tests.
The Trinity test on 16 July 1945, near Socorro, New Mexico, was the first-ever test of a nuclear weapon (yield of around 20 kilotons). The Operation Crossroads series in July 1946, at Bikini Atoll in the Marshall Islands , was the first postwar test series and one of the largest military operations in U.S. history.
The final nuclear test detonation at site was Operation Julin's "Divider" on September 23, 1992, just prior to the moratorium ending all nuclear testing. [46] Divider was a safety experiment test shot that was detonated at the bottom of a shaft sunk into Area 3.
Downwinders were individuals and communities in the intermountain West between the Cascade and Rocky Mountain ranges primarily in Arizona, Nevada, New Mexico, and Utah but also in Oregon, Washington, and Idaho who were exposed to radioactive contamination or nuclear fallout from atmospheric or underground nuclear weapons testing, and nuclear accidents.