Ives–Stilwell experiment
E33408
The Ives–Stilwell experiment is a classic test of special relativity that measured the relativistic Doppler effect to confirm time dilation for fast-moving ions.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ives–Stilwell experiment canonical | 7 |
How this entity was disambiguated
This entity first appeared as the object of triple T244338 — 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.
Target entity: Ives–Stilwell experiment Context triple: [Michelson–Morley experiment, relatedTo, Ives–Stilwell experiment]
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A.
Kennedy–Thorndike experiment
The Kennedy–Thorndike experiment is a classic test of special relativity that examined the constancy of the speed of light using an interferometer with unequal arm lengths and varying laboratory velocity.
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B.
Michelson–Morley experiment
The Michelson–Morley experiment was a landmark 1887 physics experiment that attempted to detect the Earth's motion through the hypothesized luminiferous aether and whose null result helped pave the way for Einstein's theory of special relativity.
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C.
Trouton–Noble experiment
The Trouton–Noble experiment was an early 20th-century test of the luminiferous aether that searched for a torque on a charged capacitor in motion and, by finding no such effect, provided support for the emerging theory of special relativity.
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D.
Michelson interferometer
The Michelson interferometer is a precision optical instrument that splits and recombines light beams to measure extremely small differences in path length, widely used in fundamental physics experiments and metrology.
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E.
Frisch–Peierls memorandum
The Frisch–Peierls memorandum was a pivotal 1940 document by physicists Otto Frisch and Rudolf Peierls that first outlined the feasibility of a small, practical uranium-based atomic bomb, helping to catalyze British and later Allied nuclear weapons research.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Ives–Stilwell experiment Target entity description: The Ives–Stilwell experiment is a classic test of special relativity that measured the relativistic Doppler effect to confirm time dilation for fast-moving ions.
-
A.
Kennedy–Thorndike experiment
The Kennedy–Thorndike experiment is a classic test of special relativity that examined the constancy of the speed of light using an interferometer with unequal arm lengths and varying laboratory velocity.
-
B.
Michelson–Morley experiment
The Michelson–Morley experiment was a landmark 1887 physics experiment that attempted to detect the Earth's motion through the hypothesized luminiferous aether and whose null result helped pave the way for Einstein's theory of special relativity.
-
C.
Trouton–Noble experiment
The Trouton–Noble experiment was an early 20th-century test of the luminiferous aether that searched for a torque on a charged capacitor in motion and, by finding no such effect, provided support for the emerging theory of special relativity.
-
D.
Michelson interferometer
The Michelson interferometer is a precision optical instrument that splits and recombines light beams to measure extremely small differences in path length, widely used in fundamental physics experiments and metrology.
-
E.
Frisch–Peierls memorandum
The Frisch–Peierls memorandum was a pivotal 1940 document by physicists Otto Frisch and Rudolf Peierls that first outlined the feasibility of a small, practical uranium-based atomic bomb, helping to catalyze British and later Allied nuclear weapons research.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
Doppler effect experiment
ⓘ
physics experiment ⓘ test of special relativity ⓘ |
| category |
Doppler effect
ⓘ
experiments in special relativity ⓘ |
| confirmedConcept |
relativistic Doppler formula
ⓘ
time dilation ⓘ |
| confirmedPredictionOf | special relativity ⓘ |
| contradictedTheory | Lorentz ether theory ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| field |
experimental physics
ⓘ
physics ⓘ relativity ⓘ |
| improvedBy | modern laser spectroscopy experiments ⓘ |
| involves |
Lorentz transformation
ⓘ
surface form:
Lorentz factor
relativistic kinematics ⓘ speed of light invariance ⓘ |
| measuredQuantity |
Doppler shift
ⓘ
frequency shift ⓘ time dilation factor ⓘ |
| method |
measurement of longitudinal Doppler shift
ⓘ
measurement of transverse Doppler effect ⓘ observation of spectral lines from moving ions ⓘ |
| namedAfter |
G. R. Stilwell
ⓘ
Herbert E. Ives ⓘ |
| performedBy |
G. R. Stilwell
ⓘ
Herbert E. Ives ⓘ |
| publishedIn |
Journal of the Optical Society of America A
ⓘ
surface form:
Journal of the Optical Society of America
|
| relatedTo |
Doppler spectroscopy
ⓘ
Hafele–Keating experiment ⓘ Kennedy–Thorndike experiment ⓘ Michelson–Morley experiment ⓘ time dilation tests ⓘ |
| result |
agreement with special relativity within experimental error
ⓘ
no evidence for preferred ether frame ⓘ |
| testedPhenomenon |
relativistic Doppler effect
ⓘ
time dilation ⓘ |
| testedTheory | special relativity ⓘ |
| usedReferenceFrame |
laboratory frame
ⓘ
rest frame of ions ⓘ |
| uses |
canal rays
ⓘ
fast-moving ions ⓘ spectral lines ⓘ |
| year |
1938
ⓘ
1941 ⓘ |
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.
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.
Subject: Ives–Stilwell experiment Description of subject: The Ives–Stilwell experiment is a classic test of special relativity that measured the relativistic Doppler effect to confirm time dilation for fast-moving ions.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.