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 contorted legs which was located at Keiho Middle School, approximately 800m away from the hypocenter of the bombing. The section "Events leading up to the Nagasaki Atomic Bombiing" isolates historical events from contemporary biases. The permanent exhibition rooms display large materials exposed to the blast, as well as a replica of a sidewall of the Urakami Cathedral which was hit by the bomb. The purpose is to reproduce the state which the city was in immediately after the bombing. Photographs and facts are shown alongside artifacts left by the deceased. Additionally, the second section contains some of the rosaries found