Nuclear explosion debris. The first man made nuclear explosion occurred on July 16, 1945 at 5:50 am on the Trinity Test Site near Alamogordo, New Mexico in the United States, an area now known as the White Sands Missile Range. The event involved the full-scale testing of an implosion-type fission atomic bomb. In a memorandum to the U.S. Secretary of War, General Leslie Groves describes the yield as equivalent to 15,000 to 20,000 tons of TNT. Following this test, a uranium-gun type nuclear bomb (Little Boy) was dropped on the Japanese city of Hiroshima on August 6, 1945, with a blast yield
Nagasaki Atomic Bomb Museum bomb was dropped, the devastation produced by the bomb, and the history of nuclear arms development. The Nagasaki Atomic Bomb Museum covers the history of the bombing of Nagasaki, Japan. It portrays scenes of World War II, the dropping of the atomic bomb, the reconstruction of Nagasaki, and present day. Additionally, the museum exhibits the history of nuclear weapons development. The atomic bomb was developed by scientists working under the Manhattan Project. The project was granted funding on December 6, 1941, with American leaders aiming for a new invention that would serve as a wartime weapon. The decision to drop