Joseph C. Hafele
E669199
Joseph C. Hafele is an American physicist best known for co-conducting the Hafele–Keating experiment that tested time dilation using atomic clocks on circumnavigating airplanes.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Joseph C. Hafele canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T7490027 — 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: Joseph C. Hafele Context triple: [Hafele–Keating experiment, namedAfter, Joseph C. Hafele]
-
A.
Arthur A. Shurcliff
Arthur A. Shurcliff was a prominent early 20th-century American landscape architect known for his work on major estates and historic restoration projects, including significant contributions to Colonial Revival design.
-
B.
James A. Van Allen
James A. Van Allen was an American space scientist best known for discovering the Earth's radiation belts, now called the Van Allen belts, and for his pioneering work in early space exploration missions.
-
C.
Clayton C. Anderson
Clayton C. Anderson is a retired NASA astronaut and engineer who spent time aboard the International Space Station and flew on multiple Space Shuttle missions.
-
D.
Edwin F. Taylor
Edwin F. Taylor is an American physicist and educator best known for his influential textbooks and popularizations of special and general relativity.
-
E.
George E. Smith
George E. Smith is an American physicist and Nobel laureate best known for co-inventing the charge-coupled device (CCD), a technology fundamental to digital imaging.
- 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: Joseph C. Hafele Target entity description: Joseph C. Hafele is an American physicist best known for co-conducting the Hafele–Keating experiment that tested time dilation using atomic clocks on circumnavigating airplanes.
-
A.
Arthur A. Shurcliff
Arthur A. Shurcliff was a prominent early 20th-century American landscape architect known for his work on major estates and historic restoration projects, including significant contributions to Colonial Revival design.
-
B.
James A. Van Allen
James A. Van Allen was an American space scientist best known for discovering the Earth's radiation belts, now called the Van Allen belts, and for his pioneering work in early space exploration missions.
-
C.
Clayton C. Anderson
Clayton C. Anderson is a retired NASA astronaut and engineer who spent time aboard the International Space Station and flew on multiple Space Shuttle missions.
-
D.
Edwin F. Taylor
Edwin F. Taylor is an American physicist and educator best known for his influential textbooks and popularizations of special and general relativity.
-
E.
George E. Smith
George E. Smith is an American physicist and Nobel laureate best known for co-inventing the charge-coupled device (CCD), a technology fundamental to digital imaging.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
American
ⓘ
person ⓘ physicist ⓘ physics experiment ⓘ |
| coConducted | Hafele–Keating experiment ⓘ |
| collaboratedWith | Richard E. Keating ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| fieldOfWork |
physics
ⓘ
relativity ⓘ |
| hasPart |
eastward circumnavigation flight
ⓘ
westward circumnavigation flight ⓘ |
| knownFor | Hafele–Keating experiment ⓘ |
| notableWork | Hafele–Keating experiment ⓘ |
| occupation | physicist ⓘ |
| performedBy |
Joseph C. Hafele
ⓘ
Richard E. Keating ⓘ |
| publicationVenue | Science ⓘ |
| result | confirmed relativistic time dilation within experimental error ⓘ |
| testedConcept |
time dilation
ⓘ
time dilation ⓘ |
| testedTheory |
general relativity
ⓘ
special relativity ⓘ |
| usedInstrument |
atomic clock
ⓘ
cesium-beam atomic clock ⓘ
linked to:
cesium atomic clocks
|
| usedPlatform |
airplane
ⓘ
commercial airliner ⓘ |
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: Joseph C. Hafele Description of subject: Joseph C. Hafele is an American physicist best known for co-conducting the Hafele–Keating experiment that tested time dilation using atomic clocks on circumnavigating airplanes.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.