1567-1625 JACOB LE MAIRE d. 1617
The voyage of Schouten/Le Maire in the years 1615-17 was one of the most important in the seventeenth century; they were the first to sail round Cape Horn (named after their home town Hoorn in Holland), disproving the long held theory that Tierra del Fuego r L'Ardante ou Flamboyante Colomne de Ia was part of a southern continent.
Subsequent accounts of the voyage, with maps, were L Colom de la Mer Mediterannee published by Schouten (1618) and Le Maire (posthumously, 1662)
Född 1714 27/2 i Stockholm (Maria), död 1790 19/5 i Stenkvista sn (Söd.).
Lantmätare. Kopparstickare och kartograf. Son av notarien i Södra förstadens kämnersrätt Johan B. och Maria Burgman. Student vid Uppsala universitet 1733. Avlade lantmäteriexamen 1742. Lantmätare i Stockholms län 1747-85. Var en tid aktör och har översatt dramer av Corneille och Molière.
Bland arbeten.
Karta över Drottningholm med utsikt av slottet.
Hultmark, 1944.
31 oktober 1840 - 8 september 1923.
Edvard Erdmann, född 31 oktober 1840 i Stockholm, död 8 september 1923 i Saltsjö-Duvnäs, var en svensk geolog, son till Axel Erdmann och far till Axel Erdmann.
Erdman genomgick Teknologiska institutet, antogs 1861 såsom biträdande geolog vid Sveriges geologiska undersökning (SGU), var 1870-1910 geolog vid nämnda verk och var från 1871 tillika amanuens vid det därmed förenade, nybildade geologiska museet. Han var en av stiftarna av Geologiska Föreningen i Stockholm, i vilken han 1873-76 var sekreterare och 1882, 1888 och 1897 ordförande. År 1875 företog han, med statsbidrag, en vetenskaplig resa till Tyskland, Schweiz och England.
Såsom tjänsteman vid SGU utarbetade han de geologiska kartbladen Lindsbro (1865), Nyköping (1867), Baldersnäs (1870; tillsammans med David Hummel), Rydboholm[förtydliga] (1871), Breven (1878), Helsingborg (1881), Landskrona (1881), Askersund (1889) och Grisslehamn (1895), jämte åtföljande beskrivningar. Utöver nedanstående skrifter översatte och bearbetade han Archibald...
Vägvisare för XI Olympiaden i Berlin - 1936
Sinclair - C. H. Tersmeden ca 1900.
Cassini de Thury, César-François
Biografiska uppgifter:17 June 1714 – 4 September 1784
César-François Cassini de Thury (17 June 1714 – 4 September 1784), also called Cassini III or Cassini de Thury, was a French astronomer and cartographer.
Cassini de Thury was born in Thury-sous-Clermont (Oise), the second son of Jacques Cassini and Suzanne Françoise Charpentier de Charmois. He was a grandson of Giovanni Domenico Cassini, and would become the father of Jean-Dominique Cassini, Comte de Cassini.
In 1735, he became a member of the French Academy of Sciences as a supernumerary adjunct astronomer, in 1741 as an adjunct astronomer, and in 1745 as a full member astronomer.
In January, 1751 he was elected a Fellow of the Royal Society.
He succeeded to his father’s official position in 1756 and continued the hereditary surveying operations. In 1744, he began the construction of a great topographical map of France, one of the landmarks in the history of cartography. Completed by his son Jean-Dominique, Cassini IV and published by the Académie des Sciences from 1744 to 1793, its 180 plates are known as the Cassini map(fr).
The post of director of the Paris observatory was created for his benefit in 1771 when the establishment ceased to be a dependency of the French Academy of Sciences.
His chief works are: La méridienne de l’Observatoire Royal de Paris (1744), a correction of the Paris meridian; Description géométrique de la terre (1775); and Description géométrique de la France (1784), which was completed by his son ('Cassini IV').
César-François Cassini de Thury died of smallpox in Paris on 4 September 1784,
The Cassini projection is a map projection described by César-François Cassini de Thury in 1745. It is the transverse aspect of theequirectangular projection, in that the globe is first rotated so the central meridian becomes the 'equator', and then the normal equirectangular projection is applied.
In practice, the projection has always been applied to models of the earth as an ellipsoid, which greatly complicates the mathematical development but is suitable for surveying. Nevertheless the use of the Cassini projection has largely been superseded by the Transverse Mercator projection, at least with central mapping agencies.
Areas along the central meridian, and at right angles to it, are not distorted. Elsewhere, the distortion is largely in a north-south direction, and varies by the square of the distance from the central meridian. As such, the greater the longitudinal extent of the area, the worse the distortion becomes.
Due to this, the Cassini projection works best on long, narrow areas, and worst on wide areas.
