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 glass, burnt clothing, a lunchbox with its contents still charred inside of it, and a helmet with the remains of a victim’s skull on the inner surface. Section B shows damage caused by the radiation, damages caused by the blast, appeals of the atomic bomb survivors, and the rescue and relief activities which were carried out. After viewing the city scene, museum visitors are invited to think about issues related to war and nuclear non-proliferation. This section of the museum contains the political sections entitled "The Road to the Atomic Bombing" and "The War between China and Japan and the