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Titre: Schiaparelli Mars Map, 1877-78
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Schiaparelli's Mappa Aerographica of Mars, Stereographic projection, 1877-78. Giovanni Virginio Schiaparelli (1835-1910) was an Italian astronomer and science historian. In 1888, Schiaparelli announced the discovery of a network of narrow lines on Mars, which he described as canali, an Italian word that means channels. In Italian, the word can mean a natural channel like a river valley. Stereographic projection is a particular mapping (function) that projects a sphere onto a plane. The projection is defined on the entire sphere, except at one point: the projection point. Where it is defined, the mapping is smooth and bijective.
Crédit: Album / NYPL/Science Source
Taille de l'image: 3300 × 3264 px | 30.8 MB
Taille d'impression: 27.9 × 27.6 cm | 1299.2 × 1285.0 in (300 dpi)