Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Manhattan_Project> ?p ?o }
- Manhattan_Project abstract "The Manhattan Project was a research and development project that produced the first nuclear weapons 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 U.S. Army Corps of Engineers; physicist J. Robert Oppenheimer was the director of the Los Alamos National Laboratory that designed the actual bombs. The Army component of the project was designated the Manhattan District; \"Manhattan\" gradually superseded the official codename, Development of Substitute Materials, for the entire project. Along the way, the project absorbed its earlier British counterpart, Tube Alloys. The Manhattan Project began modestly in 1939, but grew to employ more than 130,000 people and cost nearly US$2 billion (about $26 billion in 2016 dollars). Over 90% of the cost was for building factories and producing the fissile materials, with less than 10% for development and production of the weapons. Research and production took place at more than 30 sites across the United States, the United Kingdom and Canada.Two types of atomic bomb were developed during the war; a relatively simple gun-type fission weapon was made using uranium while a more complex plutonium implosion-type weapon was designed concurrently. For the Gun-Type weapon development uranium-235 (an isotope that makes up only 0.7 percent of natural uranium) was required. Chemically identical to the most common isotope, uranium-238, and with almost the same mass, it proved difficult to separate the two. Three methods were employed for uranium enrichment: electromagnetic, gaseous and thermal. Most of this work was performed at Oak Ridge, Tennessee. In parallel with the work on uranium was an effort to produce plutonium. Reactors were constructed at Oak Ridge and Hanford, Washington, in which uranium was irradiated and transmuted into plutonium. The plutonium was then chemically separated from the uranium. The gun-type design proved impractical to use with plutonium so the implosion-type weapon was developed in a concerted design and construction effort at the project's principal research and design laboratory in Los Alamos, New Mexico.The project was also charged with gathering intelligence on the German nuclear weapon project. Through Operation Alsos, Manhattan Project personnel served in Europe, sometimes behind enemy lines, where they gathered nuclear materials and documents, and rounded up German scientists. Despite the Manhattan Project's tight security, Soviet atomic spies still penetrated the program.The first nuclear device ever detonated was an implosion-type bomb at the Trinity test, conducted at New Mexico's Alamogordo Bombing and Gunnery Range on 16 July 1945. Little Boy, a gun-type weapon, and Fat Man, an implosion-type weapon, were used in the atomic bombings of Hiroshima and Nagasaki, respectively. In the immediate postwar years, the Manhattan Project conducted weapons testing at Bikini Atoll as part of Operation Crossroads, developed new weapons, promoted the development of the network of national laboratories, supported medical research into radiology and laid the foundations for the nuclear navy. It maintained control over American atomic weapons research and production until the formation of the United States Atomic Energy Commission in January 1947.".
- Manhattan_Project activeYearsEndYear "1946".
- Manhattan_Project activeYearsStartYear "1942".
- Manhattan_Project anniversary "1942-08-13".
- Manhattan_Project battle Atomic_bombings_of_Hiroshima_and_Nagasaki.
- Manhattan_Project battle Italian_Campaign_(World_War_II).
- Manhattan_Project battle Occupation_of_Japan.
- Manhattan_Project battle Operation_Overlord.
- Manhattan_Project battle Western_Allied_invasion_of_Germany.
- Manhattan_Project disbanded "1947-08-15".
- Manhattan_Project garrison Oak_Ridge,_Tennessee.
- Manhattan_Project garrison Tennessee.
- Manhattan_Project identificationSymbol "110px|center|alt=Circular shaped emblem with the words "Manhattan Project" at the top, and a large "A" in the center with the word "bomb" below it, surmounting the US Army Corps of Engineers' castle emblem".
- Manhattan_Project identificationSymbol "110px|center|alt=Oval shaped shoulder patch with a deep blue background. At the top is a red circle and blue star, the patch of the Army Service Forces. It is surrounded by a white oval, representing a mushroom cloud. Below it is a white lightning bolt cracking a yellow circle, representing an atom.".
- Manhattan_Project militaryBranch United_States_Army_Corps_of_Engineers.
- Manhattan_Project notableCommander James_C._Marshall.
- Manhattan_Project notableCommander Kenneth_Nichols.
- Manhattan_Project thumbnail Trinity_shot_color.jpg?width=300.
- Manhattan_Project wikiPageExternalLink adv_rst.aspx?keyword=Manhattan_Project.
- Manhattan_Project wikiPageExternalLink 0206076.pdf.
- Manhattan_Project wikiPageExternalLink getfile?07-16.pdf.
- Manhattan_Project wikiPageExternalLink features.shtml.
- Manhattan_Project wikiPageExternalLink www.atomicheritage.org.
- Manhattan_Project wikiPageExternalLink AMG_e.pdf.
- Manhattan_Project wikiPageExternalLink HISTORY_OF_THE_DAYTON_PROJECT.pdf.
- Manhattan_Project wikiPageExternalLink index.htm.
- Manhattan_Project wikiPageExternalLink index.html.
- Manhattan_Project wikiPageExternalLink history.
- Manhattan_Project wikiPageExternalLink www.manhattanprojectvoices.org.
- Manhattan_Project wikiPageExternalLink MALK_Gallery_01.htm.
- Manhattan_Project wikiPageExternalLink manhattan.html.
- Manhattan_Project wikiPageExternalLink manhattan_story.html.
- Manhattan_Project wikiPageExternalLink LANLMDHProjectYPart1.pdf.
- Manhattan_Project wikiPageExternalLink CMH_Pub_10-5.pdf.
- Manhattan_Project wikiPageExternalLink CMH_Pub_11-10.pdf.
- Manhattan_Project wikiPageID "19603".
- Manhattan_Project wikiPageLength "176683".
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- Manhattan_Project wikiPageRevisionID "703773838".
- Manhattan_Project wikiPageWikiLink 393d_Bomb_Squadron.
- Manhattan_Project wikiPageWikiLink 509th_Composite_Group.
- Manhattan_Project wikiPageWikiLink 5th_Division_(Imperial_Japanese_Army).
- Manhattan_Project wikiPageWikiLink Air_Force_Materiel_Command.
- Manhattan_Project wikiPageWikiLink Aircraft_Nuclear_Propulsion.
- Manhattan_Project wikiPageWikiLink Alabama_Army_Ammunition_Plant.
- Manhattan_Project wikiPageWikiLink Albert_Einstein.
- Manhattan_Project wikiPageWikiLink Albuquerque,_New_Mexico.
- Manhattan_Project wikiPageWikiLink Alcoa.
- Manhattan_Project wikiPageWikiLink Allis-Chalmers.
- Manhattan_Project wikiPageWikiLink Allotropes_of_plutonium.
- Manhattan_Project wikiPageWikiLink Alpha_particle.
- Manhattan_Project wikiPageWikiLink Alsos_Mission.
- Manhattan_Project wikiPageWikiLink Alvin_M._Weinberg.
- Manhattan_Project wikiPageWikiLink Ames_Laboratory.
- Manhattan_Project wikiPageWikiLink Ames_process.
- Manhattan_Project wikiPageWikiLink Anderson_County,_Tennessee.
- Manhattan_Project wikiPageWikiLink Arc_welding.
- Manhattan_Project wikiPageWikiLink Argonne_National_Laboratory.
- Manhattan_Project wikiPageWikiLink Armed_Forces_Special_Weapons_Project.
- Manhattan_Project wikiPageWikiLink Army-Navy_%22E%22_Award.
- Manhattan_Project wikiPageWikiLink Army_Specialized_Training_Program.
- Manhattan_Project wikiPageWikiLink Arthur_Compton.
- Manhattan_Project wikiPageWikiLink Atomic_Age.
- Manhattan_Project wikiPageWikiLink Atomic_Energy_Act_of_1946.
- Manhattan_Project wikiPageWikiLink Atomic_Heritage_Foundation.
- Manhattan_Project wikiPageWikiLink Atomic_bombings_of_Hiroshima_and_Nagasaki.
- Manhattan_Project wikiPageWikiLink Atomic_spies.
- Manhattan_Project wikiPageWikiLink Attack_on_Pearl_Harbor.
- Manhattan_Project wikiPageWikiLink Autocatalysis.
- Manhattan_Project wikiPageWikiLink Avro_Lancaster.
- Manhattan_Project wikiPageWikiLink B_Reactor.
- Manhattan_Project wikiPageWikiLink Babcock_&_Wilcox.
- Manhattan_Project wikiPageWikiLink Bakelite.
- Manhattan_Project wikiPageWikiLink Baratol.
- Manhattan_Project wikiPageWikiLink Baruch_Plan.
- Manhattan_Project wikiPageWikiLink Belgian_Congo.
- Manhattan_Project wikiPageWikiLink Belgian_government_in_exile.
- Manhattan_Project wikiPageWikiLink Bell_Labs.
- Manhattan_Project wikiPageWikiLink Bennett_Lewis.
- Manhattan_Project wikiPageWikiLink Berkeley,_California.
- Manhattan_Project wikiPageWikiLink Big_Science.
- Manhattan_Project wikiPageWikiLink Bikini_Atoll.
- Manhattan_Project wikiPageWikiLink Bisingen.
- Manhattan_Project wikiPageWikiLink Bismuth_phosphate_process.
- Manhattan_Project wikiPageWikiLink Bleacher.
- Manhattan_Project wikiPageWikiLink Bockscar.
- Manhattan_Project wikiPageWikiLink Boeing_B-29_Superfortress.
- Manhattan_Project wikiPageWikiLink Bomb_bay.
- Manhattan_Project wikiPageWikiLink Boris_Pash.
- Manhattan_Project wikiPageWikiLink Brehon_B._Somervell.
- Manhattan_Project wikiPageWikiLink Brigadier_general_(United_States).
- Manhattan_Project wikiPageWikiLink British_Defence_Staff_–_US.
- Manhattan_Project wikiPageWikiLink Brookhaven_National_Laboratory.
- Manhattan_Project wikiPageWikiLink Bulletin_of_the_Atomic_Scientists.
- Manhattan_Project wikiPageWikiLink C._D._Howe.
- Manhattan_Project wikiPageWikiLink Calutron.
- Manhattan_Project wikiPageWikiLink Canada.
- Manhattan_Project wikiPageWikiLink Carl_Friedrich_von_Weizsäcker.
- Manhattan_Project wikiPageWikiLink Carnegie_Institution_for_Science.
- Manhattan_Project wikiPageWikiLink Catalysis.