Mercator projection
E321733
The Mercator projection is a cylindrical map projection widely used for navigation because it preserves angles and directions but greatly distorts the size of landmasses near the poles.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Mercator projection canonical | 7 |
| Web Mercator | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T3026774 — 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: Mercator projection Context triple: [Gerardus Mercator, notableWork, Mercator projection]
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A.
Lambert conformal conic projection
The Lambert conformal conic projection is a map projection that preserves local shapes and angles, commonly used for aeronautical charts and regional maps in mid-latitude areas.
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B.
Lambert azimuthal equal-area projection
The Lambert azimuthal equal-area projection is a map projection that preserves area while representing the Earth on a circular, azimuthally symmetric plane, commonly used for mapping continents and polar regions.
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C.
Mercator–Hondius atlas
The Mercator–Hondius atlas is a landmark early 17th-century world atlas that combined and expanded Gerardus Mercator’s pioneering cartographic work under the publishing direction of Jodocus Hondius, becoming one of the most influential map collections of the Dutch Golden Age.
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D.
Nova Totius Terrarum Orbis Geographica ac Hydrographica Tabula (world map)
Nova Totius Terrarum Orbis Geographica ac Hydrographica Tabula is a richly decorated 17th-century world map renowned as one of the masterpieces of Dutch Golden Age cartography.
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E.
Gerardus Mercator
Gerardus Mercator was a 16th-century Flemish cartographer best known for creating the Mercator projection, a revolutionary world map that became a standard for nautical navigation.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Mercator projection Target entity description: The Mercator projection is a cylindrical map projection widely used for navigation because it preserves angles and directions but greatly distorts the size of landmasses near the poles.
-
A.
Lambert conformal conic projection
The Lambert conformal conic projection is a map projection that preserves local shapes and angles, commonly used for aeronautical charts and regional maps in mid-latitude areas.
-
B.
Lambert azimuthal equal-area projection
The Lambert azimuthal equal-area projection is a map projection that preserves area while representing the Earth on a circular, azimuthally symmetric plane, commonly used for mapping continents and polar regions.
-
C.
Mercator–Hondius atlas
The Mercator–Hondius atlas is a landmark early 17th-century world atlas that combined and expanded Gerardus Mercator’s pioneering cartographic work under the publishing direction of Jodocus Hondius, becoming one of the most influential map collections of the Dutch Golden Age.
-
D.
Nova Totius Terrarum Orbis Geographica ac Hydrographica Tabula (world map)
Nova Totius Terrarum Orbis Geographica ac Hydrographica Tabula is a richly decorated 17th-century world map renowned as one of the masterpieces of Dutch Golden Age cartography.
-
E.
Gerardus Mercator
Gerardus Mercator was a 16th-century Flemish cartographer best known for creating the Mercator projection, a revolutionary world map that became a standard for nautical navigation.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
conformal projection
ⓘ
cylindrical projection ⓘ map projection ⓘ |
| advantage |
angle preservation for navigation
ⓘ
straight-line rhumb courses ⓘ |
| appliesTo |
ellipsoidal Earth model
ⓘ
spherical Earth model ⓘ |
| cannotShow | the poles ⓘ |
| classification | cylindrical conformal projection ⓘ |
| commonlyCriticizedFor |
Eurocentric visual bias
ⓘ
area distortion in world maps ⓘ |
| commonlyUsedBy |
Google Maps
ⓘ
surface form:
Google Maps (spherical variant)
OpenStreetMap ⓘ
surface form:
OpenStreetMap (Web Mercator)
online map services ⓘ |
| coordinateSystem | longitude-latitude grid ⓘ |
| creator | Gerardus Mercator ⓘ |
| disadvantage |
exaggerated size of Antarctica
ⓘ
exaggerated size of Greenland ⓘ misleading perception of relative country sizes ⓘ |
| distorts |
area
ⓘ
high-latitude regions ⓘ size of landmasses near the poles ⓘ |
| domain | cartography ⓘ |
| hasLatitudeLimit | practically used below about 85 degrees latitude ⓘ |
| hasMathematicalBasis | logarithmic function of tangent of latitude ⓘ |
| hasProperty |
conformal
ⓘ
cylindrical ⓘ not equal-area ⓘ |
| hasVariant |
Mercator projection
self-linksurface differs
ⓘ
surface form:
Web Mercator
spherical Mercator ⓘ |
| inception | 1569 ⓘ |
| maps |
great circles to complex curves
ⓘ
rhumb lines to straight lines ⓘ |
| namedAfter | Gerardus Mercator ⓘ |
| poleRepresentation | poles at infinity ⓘ |
| preserves |
angles
ⓘ
local shapes ⓘ rhumb line directions ⓘ |
| projectionSurface | cylinder ⓘ |
| projectionType | normal aspect ⓘ |
| scaleDistortion | increases with latitude ⓘ |
| scaleFactor | true at the equator ⓘ |
| usedFor |
marine navigation
ⓘ
nautical charts ⓘ topographic mapping at low latitudes ⓘ web mapping ⓘ world maps ⓘ |
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: Mercator projection Description of subject: The Mercator projection is a cylindrical map projection widely used for navigation because it preserves angles and directions but greatly distorts the size of landmasses near the poles.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.