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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 ...
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.
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.
The final results of French Geodesic Mission, published by La Condamine in 1745, combined with the measurements of meridian arc near the Arctic Circle that had been published in 1738 by Pierre Louis Maupertuis following the French Geodesic Mission to Lapland, decisively vindicated the predictions first made by Isaac Newton in Book III of his ...
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.
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
The first of these was the French Geodesic Mission, commissioned by the French Academy of Sciences in 1735–1738, involving measurement expeditions to Lapland (Maupertuis et al.) and Peru (Pierre Bouguer et al.). Struve measured a geodetic control network via triangulation between the Arctic Sea and the Black Sea, the Struve Geodetic Arc.
Pierre Bouguer publishes La figure de la terre in Paris, describing some of the results of his work with Charles Marie de La Condamine on the French Geodesic Mission to Peru (begun in 1735) to measure a degree of the meridian arc near the equator. [1]