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Little Boy is the name of the type of atomic bomb used in the bombing of the Japanese city of Hiroshima on 6 August 1945 during World War II, making it the first nuclear weapon used in warfare.
Technical description, photographs, and video of atomic bombs Little Boy and Fat Man dropped on Hiroshima and Nagasaki in August 1945.
On August 6, 1945, the United States dropped an atomic bomb on the city of Hiroshima. The bomb was known as “Little Boy”, a uranium gun-type bomb that exploded with about thirteen kilotons of force. At the time of the bombing, Hiroshima was home to 280,000-290,000 civilians as well as 43,000 soldiers.
From the U.S. military’s point of view, it would take more than one bomb to help end World War II. Originally, the plan was to develop two gun-type bombs, a uranium-235 device named Little Boy and a plutonium-239 device named Thin Man, according to Critical Assembly.
0916:02 (8:16:02 am in Hiroshima) After falling from the Enola Gay for 43 seconds, the Little Boy atomic bomb detonates 1,968 feet above Hiroshima, 550 feet (167.64 m) from the Aioi Bridge. Nuclear fission begins in 0.15 microseconds.
The Mk I bomb, nicknamed "Little Boy," was the first nuclear weapon used in warfare. It was delivered by the B-29 Enola Gay (on display at the Smithsonian National Air & Space Museum), it detonated at an altitude of 1,800 feet over Hiroshima, Japan, on Aug. 6, 1945.
Two American atomic bombs ended World War II in August 1945, and the devastation will be forever remembered. In an instant when the first bomb was dropped, tens of thousands of residents of Hiroshima, Japan were killed by “Little Boy,” the code name for the first atomic bomb used in warfare in world history.
The atomic bomb used at Hiroshima, Japan, on August 6, 1945, was "Little Boy". The bomb was dropped by a USAAF B-29 bomber, Enola Gay, piloted by U.S. Army Air Force Colonel Paul Tibbets,...
Manhattan Project scientists designed the world’s first atomic bombs: a uranium gun-type bomb, “Little Boy” and a plutonium implosion bomb, “Fat Man.” The US dropped the Little Boy bomb on Hiroshima on August 6, 1945.
During World War II, Miriam White Campbell drew the designs for the atomic bomb known as Little Boy. She worked at Los Alamos in the 1940s when it was a clandestine lab racing to create the world’s first nuclear weapons to help end World War II.