Gaussian units
E29370
Gaussian units are a cgs-based system of electromagnetic units widely used in theoretical physics, especially in electrodynamics, for their mathematical simplicity and symmetry.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Gaussian units canonical | 6 |
| CGS electromagnetic unit system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T228960 — 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: Gaussian units Context triple: [Carl Friedrich Gauss, hasConceptNamedAfter, Gaussian units]
-
A.
Maxwell's equations
Maxwell's equations are the fundamental set of four equations in classical electromagnetism that describe how electric and magnetic fields are generated and interact with charges and currents.
-
B.
Newtonian gravitational constant G
The Newtonian gravitational constant G is the fundamental physical constant that quantifies the strength of gravitational attraction between masses in classical and relativistic theories of gravity.
-
C.
Planck constant
The Planck constant is a fundamental physical constant that quantifies the relationship between the energy of a photon and the frequency of its associated electromagnetic wave, forming a cornerstone of quantum mechanics.
-
D.
Einstein field equations
The Einstein field equations are the core mathematical framework of general relativity, relating the curvature of spacetime to the distribution of matter and energy.
-
E.
Minkowski space-time
Minkowski space-time is a four-dimensional geometric framework that unifies three-dimensional space and time into a single continuum used to describe events and motion in special relativity.
- 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: Gaussian units Target entity description: Gaussian units are a cgs-based system of electromagnetic units widely used in theoretical physics, especially in electrodynamics, for their mathematical simplicity and symmetry.
-
A.
Maxwell's equations
Maxwell's equations are the fundamental set of four equations in classical electromagnetism that describe how electric and magnetic fields are generated and interact with charges and currents.
-
B.
Newtonian gravitational constant G
The Newtonian gravitational constant G is the fundamental physical constant that quantifies the strength of gravitational attraction between masses in classical and relativistic theories of gravity.
-
C.
Planck constant
The Planck constant is a fundamental physical constant that quantifies the relationship between the energy of a photon and the frequency of its associated electromagnetic wave, forming a cornerstone of quantum mechanics.
-
D.
Einstein field equations
The Einstein field equations are the core mathematical framework of general relativity, relating the curvature of spacetime to the distribution of matter and energy.
-
E.
Minkowski space-time
Minkowski space-time is a four-dimensional geometric framework that unifies three-dimensional space and time into a single continuum used to describe events and motion in special relativity.
- F. None of above. chosen
Statements (53)
| Predicate | Object |
|---|---|
| instanceOf |
electromagnetic unit system
ⓘ
system of units ⓘ |
| advantage |
simplified form of Maxwell equations
ⓘ
symmetry between electric and magnetic fields ⓘ |
| basedOn | centimetre–gram–second system of units ⓘ |
| characteristic |
cgs-based
ⓘ
mathematical simplicity in Maxwell equations ⓘ non-rationalized ⓘ symmetrical treatment of electric and magnetic fields ⓘ |
| comparedTo |
Heaviside–Lorentz units
ⓘ
International System of Units ⓘ
surface form:
SI units
electromagnetic units (emu) ⓘ electrostatic units ⓘ |
| conversionToSI |
1 gauss = 10⁻⁴ tesla
ⓘ
1 oersted ≈ 79.57747 A/m in vacuum ⓘ 1 statcoulomb ≈ 3.33564×10⁻¹⁰ coulomb ⓘ |
| definesUnit |
dyne
ⓘ
erg ⓘ gauss ⓘ oersted ⓘ statampere ⓘ statcoulomb ⓘ statfarad ⓘ statohm ⓘ statvolt ⓘ statweber ⓘ |
| disadvantage |
dimension of charge differs from SI
ⓘ
less convenient for engineering applications ⓘ not coherent with SI units ⓘ |
| field |
electrodynamics
ⓘ
theoretical physics ⓘ |
| hasBaseUnit |
biot–like current dimension (derived)
ⓘ
centimetre ⓘ gram ⓘ second ⓘ |
| historicalUse | 20th-century theoretical physics literature ⓘ |
| namedAfter | Carl Friedrich Gauss ⓘ |
| property |
Coulomb constant k_e equals 1 in vacuum
ⓘ
electric and magnetic fields have the same dimensions in vacuum ⓘ electric charge is not a base dimension ⓘ speed of light c appears explicitly in Maxwell equations ⓘ vacuum permeability is dimensionless and equals 1 ⓘ vacuum permittivity is dimensionless and equals 1 ⓘ |
| relatedConcept |
Coulomb's law
ⓘ
surface form:
Coulomb law
Lorentz force ⓘ
surface form:
Lorentz force law
Maxwell's equations ⓘ
surface form:
Maxwell equations
|
| stillUsedBy |
astrophysicists
ⓘ
high-energy physicists ⓘ |
| usedIn |
astrophysics
ⓘ
classical electrodynamics ⓘ plasma physics ⓘ quantum field theory ⓘ relativistic electrodynamics ⓘ |
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: Gaussian units Description of subject: Gaussian units are a cgs-based system of electromagnetic units widely used in theoretical physics, especially in electrodynamics, for their mathematical simplicity and symmetry.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
oersted
subject surface form:
oersted
this entity surface form:
CGS electromagnetic unit system