French Geodesic Mission to Peru

E1033831

The French Geodesic Mission to Peru was an 18th-century scientific expedition sent by the French Academy of Sciences to measure a degree of latitude near the equator in order to determine the shape of the Earth.

Try in SPARQL Jump to: Surface forms Statements Referenced by

All labels observed (1)

Label Occurrences
French Geodesic Mission to Peru canonical 1

Statements (48)

Predicate Object
instanceOf 18th-century expedition
geodesic mission
scientific expedition
aimedToTest Gian Domenico Cassini’s theory of a prolate spheroid Earth
Isaac Newton’s theory of an oblate spheroid Earth
alsoKnownAs French Geodesic Expedition to Peru NERFINISHED
French Geodesic Mission to the Equator NERFINISHED
collaboratedWith Spanish Crown NERFINISHED
Spanish naval officers
contemporaryWith French Geodesic Mission to Lapland NERFINISHED
countryOfOrigin France
endTime 1744
field astronomy
cartography
geodesy
hasPurpose determine the shape of the Earth
measure a degree of latitude near the equator
test competing theories of Earth’s figure
ledBy Charles Marie de La Condamine NERFINISHED
Pierre Bouguer NERFINISHED
location Quito region NERFINISHED
Viceroyalty of Peru NERFINISHED
present-day Ecuador
member Antonio de Ulloa NERFINISHED
Jorge Juan y Santacilia NERFINISHED
Louis Godin NERFINISHED
Pedro Vicente Maldonado NERFINISHED
notablePublication Journal du voyage fait par ordre du roi à l’équateur (by Charles Marie de La Condamine) NERFINISHED
La figure de la terre (by Pierre Bouguer) NERFINISHED
organizedBy French Academy of Sciences NERFINISHED
partOf 18th-century geodesic campaigns
resultedIn astronomical observations of the southern sky
confirmation that Earth is flattened at the poles
ethnographic observations of Andean peoples
important geodetic data for mapmaking
improved estimates of Earth’s size
more accurate value for the length of a degree of latitude at the equator
natural history observations in South America
significance helped resolve the debate over Earth’s figure in favor of Newtonian theory
major milestone in international scientific cooperation
sponsoredBy Kingdom of France NERFINISHED
startTime 1735
usedInstrument measuring rods
pendulum clock
quadrant
zenith sector
usedMethod astronomical observations
triangulation

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

Joseph de Jussieu participantIn French Geodesic Mission to Peru