The Gadget
E15286
"The Gadget" was the codename for the first nuclear explosive device ever detonated, tested by the United States at the Trinity site in New Mexico in 1945.
All labels observed (1)
| Label | Occurrences |
|---|---|
| The Gadget canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T134108 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: The Gadget Context triple: [Trinity test site, New Mexico, weaponNickname, The Gadget]
-
A.
Philortyx
Philortyx is a genus of New World quails known for their ground-dwelling habits and occurrence in scrub and grassland habitats of the Americas.
-
B.
N Reactor
N Reactor was a dual-purpose plutonium production and power-generating nuclear reactor at the Hanford Site in Washington, notable for its graphite-moderated, water-cooled design and role in the U.S. Cold War weapons program.
-
C.
The Egg
The Egg is a modern, student-centered dining and learning facility at the Culinary Institute of America’s Hyde Park campus that showcases culinary education in a real-world restaurant environment.
-
D.
Coolamon
Coolamon is a small rural town in the Riverina region of New South Wales, Australia, known for its agricultural heritage and historic streetscape.
-
E.
Dream Machines
Dream Machines is the visionary second half of Ted Nelson’s influential 1974 book that imagines interactive, hypertext-based computers as tools for personal creativity and liberation.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: The Gadget Target entity description: "The Gadget" was the codename for the first nuclear explosive device ever detonated, tested by the United States at the Trinity site in New Mexico in 1945.
-
A.
Philortyx
Philortyx is a genus of New World quails known for their ground-dwelling habits and occurrence in scrub and grassland habitats of the Americas.
-
B.
N Reactor
N Reactor was a dual-purpose plutonium production and power-generating nuclear reactor at the Hanford Site in Washington, notable for its graphite-moderated, water-cooled design and role in the U.S. Cold War weapons program.
-
C.
The Egg
The Egg is a modern, student-centered dining and learning facility at the Culinary Institute of America’s Hyde Park campus that showcases culinary education in a real-world restaurant environment.
-
D.
Coolamon
Coolamon is a small rural town in the Riverina region of New South Wales, Australia, known for its agricultural heritage and historic streetscape.
-
E.
Dream Machines
Dream Machines is the visionary second half of Ted Nelson’s influential 1974 book that imagines interactive, hypertext-based computers as tools for personal creativity and liberation.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
nuclear explosive device
ⓘ
plutonium implosion device ⓘ prototype nuclear weapon ⓘ |
| associatedProgram |
Manhattan Project
ⓘ
surface form:
U.S. World War II atomic bomb program
|
| codenameFor | first nuclear explosive device ever detonated ⓘ |
| coreShape | plutonium pit ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| dateYear | 1945 ⓘ |
| designType | implosion-type nuclear device ⓘ |
| detonatedBy |
United States Army
ⓘ
U.S. Army Corps of Engineers ⓘ
surface form:
United States Army Corps of Engineers
|
| detonationMethod | tower detonation ⓘ |
| developedBy | Los Alamos Laboratory ⓘ |
| developedUnder |
Manhattan Engineer District of the U.S. Army Corps of Engineers
ⓘ
surface form:
Manhattan Engineer District
|
| era | World War II ⓘ |
| fissileMaterial | plutonium-239 ⓘ |
| followedBy |
atomic bombing of Nagasaki
ⓘ
surface form:
Fat Man bombing of Nagasaki
|
| fundedBy | United States government ⓘ |
| historicalSignificance |
beginning of the nuclear age
ⓘ
first man-made nuclear explosion ⓘ |
| legacy | foundation for subsequent nuclear weapons design ⓘ |
| locationRegion | Jornada del Muerto desert ⓘ |
| militaryDirector | Leslie R. Groves Jr. ⓘ |
| nicknameLanguage | English ⓘ |
| notUsedInCombat | true ⓘ |
| oversightAgency |
Manhattan Engineer District of the U.S. Army Corps of Engineers
ⓘ
surface form:
U.S. Army Corps of Engineers Manhattan District
|
| partOf | Manhattan Project ⓘ |
| projectDirector | J. Robert Oppenheimer ⓘ |
| purpose |
proof of concept for Fat Man bomb
ⓘ
test of plutonium implosion design ⓘ |
| relatedWeapon | Fat Man ⓘ |
| resultedIn | radioactive fallout in surrounding area ⓘ |
| safetyTesting | preceded by non-nuclear implosion tests ⓘ |
| state | New Mexico ⓘ |
| technology | explosive lens implosion system ⓘ |
| testDate | 1945-07-16 ⓘ |
| testedAt |
Trinity test site, New Mexico
ⓘ
surface form:
Trinity test site
|
| testedIn | New Mexico ⓘ |
| testedNear | Alamogordo ⓘ |
| testEnvironment | atmospheric nuclear test ⓘ |
| testName | Trinity ⓘ |
| testSeries | Trinity ⓘ |
| testTime | 05:29:21 local time ⓘ |
| towerHeight | about 30 meters ⓘ |
| usedExplosives | conventional high explosives for implosion ⓘ |
| yield | about 21 kilotons of TNT ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: The Gadget Description of subject: "The Gadget" was the codename for the first nuclear explosive device ever detonated, tested by the United States at the Trinity site in New Mexico in 1945.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.