Stock photography, photos: Replicas of First Atomic Bombs Stock photos of Replicas of the first Atomic bombs. „Little Boy‰ (left) was the first nuclear weapon used in warfare. It exploded approximately 1,800 feet over Hiroshima, Japan, on the morning of August 6, 1945, with a force equal to 13,000 tons of TNT. Immediate deaths were between 70,000 to 130,000. Little Boy was dropped from a B-29 bomber piloted by U.S. Army Air Force Col. Paul W. Tibbets. Tibbets had named the plane „Enola Gay‰ after his mother the night before the atomic attack. „Fat Man‰ (right) was the second nuclear weapon used in warfare. Dropped on Nagasaki, Japan, on August 9, 1945, Fat Man devastated more than two square miles of the city and caused approximately 45,000 immediate deaths. While Little Boy was a uranium gun-type device, Fat Man was a more complicated and powerful plutonium implosion weapon that exploded with a force equal to 20 kilotons of TNT. National Atomic Museum ˆ Albuquerque, New Mexico ˆ USA. Photograph: © Robert Burch Click for a larger image and more information Keywords associated with this stock photo: atomic bomb, atomic, atom, weapon, bomb, little boy, fat man, Nagasaki, Hiroshima, japan, world war II, war, warfare, nuclear, nuclear weapon, destruction, devastation, atomic warfare, national atomic museum, atomic museum, Albuquerque, New Mexico, USA, uranium, plutonium