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Atomic bombings of Hiroshima and Nagasaki
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On 6 and 9 August 1945, the United States detonated two atomic bombs over the Japanese cities of Hiroshima and Nagasaki, respectively, during the final days of World War II. The aerial bombings killed
Atomic bomb mushroom clouds over Hiroshima (left) and Nagasaki (right)
Atomic bomb mushroom clouds over Hiroshima (left) and Nagasaki (right)
Situation of the Pacific War on 1 August 1945 White and green: Areas controlled by Japan Red: Areas controlled by the Allies Gray: Areas controlled by
Situation of the Pacific War on 1 August 1945 White and green: Areas controlled by Japan Red: Areas controlled by the Allies Gray: Areas controlled by the Soviet Union (neutral)
U.S. Army propaganda poster depicting Uncle Sam preparing the public for the invasion of Japan after the end of the war with Germany and Italy
U.S. Army propaganda poster depicting Uncle Sam preparing the public for the invasion of Japan after the end of the war with Germany and Italy
A B-29 over Osaka on 1 June 1945
A B-29 over Osaka on 1 June 1945
Little Boy
Videos
Little Boy was a type of atomic bomb created by the Manhattan Project during World War II. The name is also often used to describe the specific bomb used in the bombing of the Japanese city of Hiroshi
Atomic bombings of Hiroshima and Nagasaki
…and the Allies turned their full attention to the Pacific War. By July 1945, the Allies' Manhattan Project had produced two types of atomic bombs: "Little Boy", an enriched uranium gun-type fission weapon, and "Fat Man", a plutonium implosion-type nuclear weapon. The 509th Composite Group of the U.S. Army Air…
Little Boy bomb
Little Boy bomb
"Thin Man" plutonium gun test casings at Muroc Army Airfield, as part of Project Alberta in the Manhattan Project, illustrating their relative length
"Thin Man" plutonium gun test casings at Muroc Army Airfield, as part of Project Alberta in the Manhattan Project, illustrating their relative length and size
Little Boy target case (left) attached to a gun tube at Anchor Ranch, Los Alamos, used for testing purposes. Compare with a similar image of the Thin
Little Boy target case (left) attached to a gun tube at Anchor Ranch, Los Alamos, used for testing purposes. Compare with a similar image of the Thin Man internal components.
As part of Project Alberta, Commander A. Francis Birch (left) assembles the combat unit (L-11) while physicist Norman Ramsey watches. This is one of t
As part of Project Alberta, Commander A. Francis Birch (left) assembles the combat unit (L-11) while physicist Norman Ramsey watches. This is one of the rare photos where the interior of the bomb can be seen, with the fuzing units and battery boxes visible, attached around the gun tube.