hertz
E105932
The hertz is the SI unit of frequency, representing one cycle per second and commonly used to measure waves such as sound and electromagnetic radiation.
All labels observed (2)
How this entity was disambiguated
This entity first appeared as the object of triple T891783 — 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: hertz Context triple: [Heinrich Hertz, hasUnitNamedAfter, hertz]
-
A.
Horn
Horn is a surname most prominently associated with English music producer and musician Trevor Horn, known for his influential work in pop and rock music.
-
B.
Audion
Audion is an early triode vacuum tube invented by Lee de Forest that enabled the amplification of electrical signals and was crucial to the development of radio and electronics.
-
C.
Zeiger
Zeiger is the birth surname of famed American television and radio host Larry King.
-
D.
Fourier
Fourier is a French surname most famously associated with Jean-Baptiste Joseph Fourier, the mathematician and physicist known for developing Fourier analysis and Fourier series.
-
E.
Wavelengths
Wavelengths is the Toronto International Film Festival’s avant-garde and experimental cinema program, showcasing innovative and boundary-pushing works in film and video.
- 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: hertz Target entity description: The hertz is the SI unit of frequency, representing one cycle per second and commonly used to measure waves such as sound and electromagnetic radiation.
-
A.
Horn
Horn is a surname most prominently associated with English music producer and musician Trevor Horn, known for his influential work in pop and rock music.
-
B.
Audion
Audion is an early triode vacuum tube invented by Lee de Forest that enabled the amplification of electrical signals and was crucial to the development of radio and electronics.
-
C.
Zeiger
Zeiger is the birth surname of famed American television and radio host Larry King.
-
D.
Fourier
Fourier is a French surname most famously associated with Jean-Baptiste Joseph Fourier, the mathematician and physicist known for developing Fourier analysis and Fourier series.
-
E.
Wavelengths
Wavelengths is the Toronto International Film Festival’s avant-garde and experimental cinema program, showcasing innovative and boundary-pushing works in film and video.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
SI derived unit
ⓘ
unit of frequency ⓘ |
| approvedBy | General Conference on Weights and Measures ⓘ |
| baseQuantity | time ⓘ |
| belongsToCategory | SI units named after people ⓘ |
| dimension | T^-1 ⓘ |
| fieldOfUse |
acoustics
ⓘ
electromagnetism ⓘ electronics ⓘ signal processing ⓘ telecommunications ⓘ vibration analysis ⓘ |
| hasAbbreviation | Hz ⓘ |
| inFormula |
f = 1/T
ⓘ
f = N/Δt ⓘ |
| introducedInSI | 1960 ⓘ |
| inverseOf | second per cycle ⓘ |
| isScalarUnit | true ⓘ |
| multipleUnit |
gigahertz
ⓘ
kilohertz ⓘ megahertz ⓘ terahertz ⓘ |
| namedAfter | Heinrich Hertz ⓘ |
| quantityMeasured | frequency ⓘ |
| replaced | cycles per second ⓘ |
| replacesSymbol | cps ⓘ |
| represents |
one cycle per second
ⓘ
one event per second ⓘ |
| SIBaseUnitRelation | s^-1 ⓘ |
| standardizedBy | International Bureau of Weights and Measures ⓘ |
| symbol | Hz ⓘ |
| system | International System of Units ⓘ |
| unitInSIFor | frequency ⓘ |
| unitSystem | coherent SI unit ⓘ |
| usedIn |
audio engineering
ⓘ
computer processors ⓘ digital electronics ⓘ power systems ⓘ seismology ⓘ |
| usedToMeasure |
clock frequency
ⓘ
electromagnetic waves ⓘ light frequency ⓘ microwaves ⓘ radio waves ⓘ rotational speed ⓘ sound waves ⓘ |
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: hertz Description of subject: The hertz is the SI unit of frequency, representing one cycle per second and commonly used to measure waves such as sound and electromagnetic radiation.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.