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The French Geodesic Mission to the Equator (French: Expédition géodésique française en Équateur), also called the French Geodesic Mission to Peru and the Spanish-French Geodesic Mission, was an 18th-century expedition to what is now Ecuador carried out for the purpose of performing an arc measurement, measuring the length of a degree of latitude near the Equator, by which the Earth's ...
In 1736 Spanish scientists Jorge Juan y Santacilia and Antonio de Ulloa, sent by the French Academy on a French Geodesic Mission to measure a degree of meridian arc at the equator, arrived in the Viceroyalty colony. Jorge Juan y Santacilia had sailed on the same ship as Viceroy Mendoza.
The early work of the French Geodesic Mission, led by Charles Marie de La Condamine, was delayed and hindered by lack of cooperation from the local Spanish authorities. Indeed, in 1737 a personal dispute between Ulloa and the president of the Real Audiencia de Quito , Joseph de Araujo y Río, reached such a pitch that Araujo ordered the arrest ...
The placement of the equatorial line was defined throughout a 1736 expedition called the French Geodesic Mission.While such studies would later determine the exact measure and shape of the world, astronomers involved missed the possibility of encountering the remnants of highly sophisticated geographical achievements made on “Equatorial” territory for hundreds of years before their arrival.
Pedro Vicente Maldonado y Flores (November 24, 1704 in Riobamba, Royal Audience of Quito (today's Ecuador) – November 7, 1748 in London, England) was an Ecuadorian scientist who collaborated with the members of the French Geodesic Mission. As well as a physicist and a mathematician, Maldonado was an astronomer, topographer, and geographer.
Charles Marie de La Condamine (French: [la kɔ̃damin]; 28 January 1701 – 4 February 1774) was a French explorer, geographer, and mathematician.He spent ten years in territory which is now Ecuador, measuring the length of a degree of latitude at the equator and preparing the first map of the Amazon region based on astro-geodetic observations.
She notably wrote a book and several articles on Pierre Louis Maupertuis, a French philosopher, mathematician, physicist, astronomer, and naturalist of the 18th Century who contributed to the various theories of Isaac Newton and formulated the stationary-action principle. Maupertuis also led the French Geodesic Mission to the Equator. [5] [6] [7]
The Toise of Peru had been constructed in 1735 for Bouguer and De La Condamine as their standard of reference in the French Geodesic Mission, conducted in actual Ecuador from 1735 to 1744 in collaboration with the Spanish officers Jorge Juan and Antonio de Ulloa. [130] [122] Gravimeter with variant of Repsold pendulum