Charles Lallemand (geodesist)

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Charles Lallemand (1857-1938)

Charles Lallemand (born March 7, 1857 in Saint-Aubin-sur-Aire , † February 1, 1938 in Bussy-le-Repos (Marne) , Haute-Marne department ) was a French geodesist.

Life

He studied from 1874 at the École polytechnique and later at the Ecole des Mines in Paris. He then worked as secretary of the Conseil général des Mines. From 1881 he was entrusted with the organization of a new survey of France, which was initiated under the Minister for Public Works Charles de Freycinet , in order to create the conditions for the extensive expansion of the railway network. Lallemand also made important technical contributions to geodesy and the instruments and calculation methods used for it (at the World Exhibition in 1889 he presented an adding machine). The inventor of nomography Maurice d'Ocagne was his assistant for a long time.

He was editor of the geodesy volume in the French edition of the Encyclopedia of Mathematical Sciences (1915).

In 1910 he became a member of the Académie des Sciences and in 1926 its president. He was the commander of the Legion of Honor . In 1917 he became a member of the Bureau des Longitudes . From 1919 to 1933 he was President of the International Union for Geodesy and Geophysics .

He died of an inflammation of the nerves caused by shingles.

The Lallemand Fjord on the west coast of the Antarctic Peninsula is named after Charles Lallemand .

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