Trinity was the first test of technology for a nuclear weapon. It was conducted by the United States on July 16, 1945, at a location 35 miles (56 km) southeast of Socorro, New Mexico, on what is now White Sands Missile Range, headquartered near Alamogordo. Trinity was a test of an implosion-design plutonium bomb. The Fat Man bomb, using the same conceptual design, was dropped on Nagasaki, Japan, a few weeks later. The detonation was equivalent to the explosion of around 20 kilotons of TNT, and is usually considered as the beginning of the Atomic Age.

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