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 National Peace Memorial Hall for the Atomic Bomb Victims across the surface of the water, symbolizing the victims. The foundation also tours internationally, holding anti-nuclear displays in cities around the world. The 2005 exhibition was held at the Peace Museum in Chicago, coinciding with the 60th anniversary of the bombing as well as a conference in New York which reviewed the Nuclear Non-Proliferation Treaty. In 2007, the exhibition was held in Guernica, Spain, which was heavily bombed by the Luftwaffe in April 1937. Nagasaki National Peace Memorial Hall for the Atomic Bomb Victims The is a commemorative monument in Nagasaki, Japan, situated next to its Atomic Bomb Museum. The