Manhattan Project

E354

World War II project military research project nuclear weapons program

The Manhattan Project was the secret U.S.-led World War II research and development program that produced the first nuclear weapons.

Aliases (10)

Manhattan Project (as spouse of director) ×1
Manhattan Project collaboration ×1
Manhattan Project research ×1
Manhattan Project scientific staff ×1
Oppenheimer ×1
U.S. World War II atomic bomb program ×1
United States atomic bomb program ×1
United States atomic weapons program ×1
World War II (as civilian scientist) ×1
World War II nuclear weapons research ×1

Statements (57)

Predicate	Object
instanceOf	World War II project → military research project → nuclear weapons program →
aim	development of atomic bombs →
codenameOrigin	Manhattan Engineer District of the U.S. Army Corps of Engineers →
conflict	World War II →
coordinatingOrganization	United States Army Corps of Engineers →
country	United States →
countryPartner	Canada → United Kingdom →
director	Leslie R. Groves Jr. →
employedPeople	over 130000 →
endDate	1946-12-31 →
estimatedCostComment	about $2 billion 1940s USD →
estimatedCostUSD	2000000000 →
ethicalDebate	use of atomic bombs on Japan →
field	nuclear physics → weapons engineering →
firstNuclearTest	Trinity test →
firstNuclearTestDate	1945-07-16 →
firstNuclearTestLocation	Alamogordo Bombing and Gunnery Range, New Mexico →
keyScientist	Arthur H. Compton → Edward Teller → Enrico Fermi → Ernest O. Lawrence → Eugene Wigner → Hans Bethe → James Chadwick → John von Neumann → Leo Szilard → Niels Bohr → Richard Feynman →
legacy	beginning of the nuclear age → establishment of U.S. nuclear weapons complex →
mainSite	Los Alamos Laboratory →
mainSiteLocation	Los Alamos, New Mexico →
militaryBranch	U.S. Army →
namedAfter	Manhattan Engineer District →
predecessor	MAUD Committee → S-1 Uranium Committee →
producedWeapon	Fat Man → Little Boy →
result	first nuclear weapons →
scientificDirector	J. Robert Oppenheimer →
securityClassification	top secret →
site	Chicago Metallurgical Laboratory → Columbia University → Hanford Site, Washington → Lawrence Berkeley National Laboratory → Oak Ridge, Tennessee → Trinity test site, New Mexico → University of Chicago →
startDate	1942-08-13 →
successor	Operation Crossroads → United States Atomic Energy Commission →
usedInEvent	atomic bombing of Hiroshima → atomic bombing of Nagasaki →

Referenced by (159)

Subject (surface form when different)	Predicate
B Reactor → British Mission to the Manhattan Project → C Reactor → Chicago Metallurgical Laboratory → Chicago Pile-1 → Clinton Engineer Works → Clinton Laboratories → D Reactor → East Tennessee Technology Park → F Reactor → K-25 Project → Los Alamos Laboratory → Met Lab → Montreal Laboratory → Oak Ridge National Laboratory → Project Alberta → Project Y → Radiation Laboratory → Secret City → Site X → The Gadget → Trinity → Trinity test device → Trinity test site, New Mexico → V-Site buildings → X-10 graphite reactor →	partOf
Bruno Rossi → Edward Teller → Enrico Fermi → George Kistiakowsky → Herbert L. Anderson → I. I. Rabi → Isidor Isaac Rabi → James Chadwick → James Franck → Leona Woods → Louis Slotin → Luis Alvarez → Norris Bradbury → Philip Morrison → Robert F. Christy → Robert R. Wilson → Rudolf Peierls → Seth Neddermeyer ("Manhattan Project scientific staff") → Victor F. Weisskopf → Walter Zinn →	memberOf
Alvin M. Weinberg → Arthur H. Compton → Edward Condon → Ernest O. Lawrence → Eugene Wigner → Hans Bethe → Hans Bethe → Harold Urey → Joseph J. Katz → Joseph Rotblat → Katherine Oppenheimer ("Manhattan Project (as spouse of director)") → Mark Oliphant → Nathan Sugarman → Norman Ramsey → Norris Bradbury → Richard C. Tolman → Richard Feynman → Seth Neddermeyer →	participatedIn
Atomic Energy Act of 1946 → Downfall → Einstein–Szilard letter → Executive Order 8807 → Hyde Park Aide-Mémoire → MAUD Report → McMahon Act → Quebec Agreement → Szilard petition → Tube Alloys programme → United States nuclear weapons testing →	relatedTo
Enrico Fermi → George Weil → Herbert L. Anderson ("World War II nuclear weapons research") → James B. Conant → Julius Robert Oppenheimer → Klaus Fuchs → Robert Serber → William S. Parsons →	participantIn
Jornada del Muerto desert → Los Alamos Scientific Laboratory Historic District → Monte Carlo method → Stagg Field, University of Chicago → X-10 Project →	associatedWith
Emilio Segrè → Glenn T. Seaborg → Leo Szilard → Otto Frisch → Stanislaw Ulam →	workedOn
J. Robert Oppenheimer → Julius Robert Oppenheimer → Leslie R. Groves Jr. → Philip Morrison →	notableWork
Bradbury Science Museum → Now It Can Be Told: The Story of the Manhattan Project → Oppenheimer (2023 film) → Surely You’re Joking, Mr. Feynman! →	subject
Chien-Shiung Wu → Eugene Wigner → George Weil →	employer
A World Destroyed → American Museum of Science and Energy → Oak Ridge History Museum →	focusesOn
Frisch–Peierls memorandum → MAUD Committee → MAUD Committee ("United States atomic bomb program") →	influenced
Los Alamos, New Mexico → Louis Slotin ("Manhattan Project research") → Pajarito Plateau →	knownFor
Leslie R. Groves Jr. → Manhattan Engineer District → Office of Scientific Research and Development →	notableProject
Franck Report → V-Site buildings →	associatedWithProject
Fat Man → Little Boy →	developedBy
American Prometheus: The Triumph and Tragedy of J. Robert Oppenheimer → Atomic Quest →	mainSubject
Perfectly Reasonable Deviations from the Beaten Track: The Letters of Richard P. Feynman →	about
Robert Serber ("United States atomic weapons program") →	affiliation
Manhattan Engineer District →	alsoKnownAs
The Gadget ("U.S. World War II atomic bomb program") →	associatedProgram
B Reactor →	associatedWithEvent
Hanford Site →	builtFor
Los Alamos Ranch School →	campusLaterUsedFor
Hyde Park Aide-Mémoire ("Manhattan Project collaboration") →	concerns
Bethe–Feynman formula for nuclear explosions →	developedDuring
Oak Ridge, Tennessee →	establishedFor
J. Robert Oppenheimer ("Oppenheimer") →	familyName
Clinton, Tennessee →	hasHistoricalTieTo
World War II →	hasPart
Brian VanDeMark →	hasWrittenAbout
United States nuclear weapons complex →	historicalOrigin
Y-12 National Security Complex →	historicalProject
United States home front during World War II →	involvedAgency
Tube Alloys programme →	mergedInto
Herbert L. Anderson ("World War II (as civilian scientist)") →	militaryConflict
John Archibald Wheeler →	militaryProject
Hans Bethe →	movement
Oppenheimer (film score) →	narrativeFocus
Trinity →	operator
509th Composite Group →	oversight
DuPont →	playedRoleIn
S-1 Uranium Committee →	predecessorOf
Manhattan District →	primaryProject
Hanford production reactors →	program
Chicago Pile-2 →	project
atomic bombings of Hiroshima and Nagasaki →	projectContext
Atomic Quest →	relatedWork
Oak Ridge, Tennessee →	roleIn
American Prometheus: The Triumph and Tragedy of J. Robert Oppenheimer →	setInEvent
Oak Ridge Reservation →	significantEvent
Manhattan Project National Historical Park (Los Alamos unit) →	significantProject
Los Alamos Historical Museum →	theme
Niels Bohr →	tookPartIn