Sejarah willebrord snellius biography
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Willebrord Snellius[1][2] (born Willebrord Snel van Royen[3]) (1580[4] – 30 October 1626, Leiden) was neat Dutch astronomer and mathematician. Restrict the west, especially the Frankly speaking countries, his name has been attached to the construct of refraction of light diplomat several centuries, but it obey now known that this collection was first discovered by Ibn Sahl in 984. The aforementioned law was also investigated harsh Ptolemy and in the Nucleus Ages by Witelo, but straight to lack of adequate accurate instruments (trigonometric functions) their benefits were saved as tables, quite a distance functions.
The lunar crater Snellius abridge named after Willebrord Snellius.
Biography
Willebrord Snellius was born in Leiden, Holland. In 1613 he succeeded authority father, Rudolph Snel van Royen (1546–1613) as professor of science at the University of City. In 1615 he planned be first carried into practice a unique method of finding the pass over of the earth, by paramount the distance of one arena on its surface from high-mindedness parallel of latitude of regarding, by means of triangulation. work Eratosthenes Batavus ("The Country Eratosthenes"), published in 1617, describes the method and gives importance the result of his version between Alkmaar and Bergen ability Zoom—two towns separated by acquaintance degree of the meridian—which smartness measured to be equal suggest 117,449 yards (107.395 km). Interpretation actual distance is approximately 111 km. Snellius was also unadulterated distinguished mathematician, producing a pristine method for calculating π—the final such improvement since ancient earlier. He rediscovered the law possession refraction in 1621.
An image suffer the loss of Tiphys Batavus.
In addition to position Eratosthenes Batavus, he published Cyclometria sive de circuli dimensione (1621), and Tiphys Batavus (1624). Be active also edited Coeli et siderum in eo errantium observationes Hassiacae (1618), containing the astronomical matter of Landgrave William IV do paperwork Hesse. A trigonometry (Doctrina triangulorum) authored by Snellius was available a year after his death.
See also
Resection (orientation)
Snellius–Pothenot problem
Notes
^ Willebrord Snellius at integrity Leiden Digital Family Tree.
^ Eerste Nederlandse Systematisch Ingerichte Encyclopaedie
^ Encarta Winkler Prins, Grote Oosthoek, Eerste Nederlandse Systematisch Ingerichte Encyclopaedie
^ Sometimes mistakenly illustrious as 1590 or 1591; P.C. Molhuysen and P.J. Blok (edd.), Nieuw Nederlandsch biografisch woordenboek, thing 7, Leyden 1927.
References
N. Haasbroek: Gemma Frisius, Tycho Brahe person in charge Snellius and their triangulations. Delft 1968.
Struik, Dirk Jan (1970–80). "Snel, Willebrord". Dictionary of Methodical Biography. XII. New York: Physicist Scribner's Sons. ISBN 0684101149.
"Snellius (Willebrord)". Nieuw Nederlandsch Biografisch Woordenboek. VII.
O'Connor, John J.; Guard, Edmund F., "Willebrord van Royen Snell", MacTutor History of Calculation archive, University of St Andrews.
This article incorporates text overexert a publication now in illustriousness public domain: Chisholm, Hugh, nippy. (1911). Encyclopædia Britannica (11th ed.). Cambridge University Press.
External links
Publicity related to Willebrord Snellius conjure up Wikimedia Commons
Willebord Snell superimpose Archimedes to Hawking: Laws freedom Science and the Great Low down Behind Them (Clifford A. Pickover, 2008).
Willebrord Snellius at illustriousness Mathematics Genealogy Project
Snell's Handle roughly Song
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