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Manhattan District From top to bottom, left to right: Chicago Pile-1, the first nuclear reactor K-25, the primary uranium enrichment site The Hanford B Reactor used for plutonium production The Gadget implosion device at Los Alamos Alsos soldiers dismantle the Haigerloch pile of the German nuclear weapons program The Trinity test, the first nuclear explosion Atomic bombings of Hiroshima and ...
Leslie Groves, Manhattan Project director, with a map of the Far East The discovery of nuclear fission in 1938 made the development of an atomic bomb a theoretical possibility. [ 52 ] Fears that a German atomic bomb project would develop atomic weapons first, especially among scientists who were refugees from Nazi Germany and other fascist ...
The United States is known to have possessed three types of weapons of mass destruction: nuclear, chemical, and biological weapons.As the country that invented nuclear weapons, the U.S. is the only country to have used nuclear weapons on another country, when it detonated two atomic bombs over two Japanese cities of Hiroshima and Nagasaki during World War II.
Manhattan Project scientists had identified two fissile isotopes for potential use in bombs: uranium-235 and plutonium-239. [7] Uranium-235 became the basis of the Little Boy bomb design, first used (without prior testing) in the bombing of Hiroshima ; the design used in the Trinity test, and eventually used in the bombing of Nagasaki ( Fat Man ...
A map claiming to show the areas of the US that may be targeted in a nuclear war that originally circulated in 2015 is making the rounds again, amid the Russian war in Ukraine.
There are various ways in which the allies cooperated, including the American Lend-Lease scheme and hybrid weapons such as the Sherman Firefly as well as the British Tube Alloys nuclear weapons research project which was absorbed into the American-led Manhattan Project. Several technologies invented in Britain proved critical to the military ...
The 1945 photo shows Manhattan Project physicist Harold Agnew holding the heart of one of the most devastating weapons in the world.
The Manhattan Project was a research and development project that produced the first atomic bombs during World War II. It was led by the United States with the support of the United Kingdom and Canada. From 1942 to 1946, the project was under the direction of Major General Leslie Groves of the US Army Corps of Engineers. The Army component of ...