Leyden jar
E386354
The Leyden jar is an early form of capacitor that stores static electric charge on metal foil layers separated by an insulating glass container.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Leyden jar canonical | 4 |
| Capacitor | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3770328 — 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: Leyden jar Context triple: [Voltaic pile, comparedWith, Leyden jar]
-
A.
Voltaic pile
The Voltaic pile is the first chemical battery, invented by Alessandro Volta, which provided a continuous and reliable source of electric current and laid the foundation for modern electrochemistry and electrical engineering.
-
B.
Van de Graaff generators
Van de Graaff generators are electrostatic machines that use a moving belt to accumulate very high voltages on a hollow metal sphere, commonly used for physics research and educational demonstrations of electricity.
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C.
Volta Laboratory
Volta Laboratory was an experimental research facility established in the late 19th century that became a key center for innovation in sound recording, telephony, and related communication technologies.
-
D.
Faraday cage
A Faraday cage is an enclosure made of conductive material that blocks external static and non-static electric fields, protecting its interior from electromagnetic interference.
-
E.
Faraday Cup
The Faraday Cup is a scientific instrument used on spacecraft to directly measure the density, velocity, and temperature of charged particles in the solar wind and space plasmas.
- 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: Leyden jar Target entity description: The Leyden jar is an early form of capacitor that stores static electric charge on metal foil layers separated by an insulating glass container.
-
A.
Voltaic pile
The Voltaic pile is the first chemical battery, invented by Alessandro Volta, which provided a continuous and reliable source of electric current and laid the foundation for modern electrochemistry and electrical engineering.
-
B.
Van de Graaff generators
Van de Graaff generators are electrostatic machines that use a moving belt to accumulate very high voltages on a hollow metal sphere, commonly used for physics research and educational demonstrations of electricity.
-
C.
Volta Laboratory
Volta Laboratory was an experimental research facility established in the late 19th century that became a key center for innovation in sound recording, telephony, and related communication technologies.
-
D.
Faraday cage
A Faraday cage is an enclosure made of conductive material that blocks external static and non-static electric fields, protecting its interior from electromagnetic interference.
-
E.
Faraday Cup
The Faraday Cup is a scientific instrument used on spacecraft to directly measure the density, velocity, and temperature of charged particles in the solar wind and space plasmas.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
capacitor
ⓘ
electrical component ⓘ electrostatic device ⓘ |
| capacitanceDependsOn |
area of metal foils
ⓘ
dielectric constant of glass ⓘ thickness of glass dielectric ⓘ |
| category |
electrical engineering
ⓘ
history of electricity ⓘ scientific instruments ⓘ |
| chargeStorageMechanism | separation of positive and negative charges on opposite foils ⓘ |
| chargeStoredProportionalTo | applied voltage ⓘ |
| developedAroundYear | 1745 ⓘ |
| developedInCentury | 18th century ⓘ |
| developedIndependentlyBy |
Ewald Georg von Kleist
ⓘ
Pieter van Musschenbroek ⓘ |
| dischargePath | spark gap or conductor between inner and outer electrodes ⓘ |
| hasFunction | store static electric charge ⓘ |
| hasMeasurement | capacitance ⓘ |
| hasPart |
conducting rod
ⓘ
discharge terminal ⓘ glass container ⓘ inner metal foil electrode ⓘ insulating stopper ⓘ outer metal foil electrode ⓘ |
| hasProperty |
high voltage capability
ⓘ
low capacitance compared to modern capacitors ⓘ |
| historicallyAssociatedWith |
Benjamin Franklin
ⓘ
early lightning experiments ⓘ |
| influenced |
development of modern capacitors
ⓘ
understanding of charge storage ⓘ |
| namedAfter | city of Leiden ⓘ |
| originCountry | Netherlands ⓘ |
| replacedBy | modern capacitors in practical applications ⓘ |
| safetyConcern |
can deliver painful electric shocks
ⓘ
requires careful discharge before handling ⓘ |
| separatesElectrodesBy | insulating glass ⓘ |
| separationMedium | glass dielectric ⓘ |
| stillUsedIn |
educational physics demonstrations
ⓘ
historical reenactments of electrical experiments ⓘ |
| storesChargeOn | metal foil layers ⓘ |
| usedFor |
demonstrating electrostatic phenomena
ⓘ
early electrical experiments ⓘ medical electrotherapy in the 18th century ⓘ producing electric sparks ⓘ |
| usesPrinciple | electrostatic induction ⓘ |
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: Leyden jar Description of subject: The Leyden jar is an early form of capacitor that stores static electric charge on metal foil layers separated by an insulating glass container.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Leyden jar