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snell

Attempts have been made, principally founded on some remarks of Huygens, to show that Descartes had learned the principles of refraction from the manuscript of a treatise by Willebrord Snell, but the facts are uncertain; and, so far as Descartes founds his optics on any one, it is probably on the researches of Kepler.

00He then returned to Balliol as a Snell exhibitioner; became vicar of High Ercall, Shropshire, in 1750; canon of Windsor, 1762; bishop of Carlisle, 1787 (and also dean of Windsor, 1788); bishop of Salisbury, 1791.

00Since the angles of incidence and refraction are connected by the relation sin i=µ sin r (Snell's Law), µ being the index of refraction of the medium, then the problem may be stated as follows: to determine the value of the angle i which makes D = 2 (i - r) +n (7r - 2r) a maximum or minimum, in which i and r are connected by the relation sin i =µ sin r, µ being a constant.

00WILLEBRORD SNELL (1591-1626), commonly known as

00In 1613 he succeeded his father Rudolph Snell (1546-1613) as professor of mathematics in the university of Leiden.

00He was sent in 1737 to the university of Glasgow, where he attended the lectures of Dr Hutcheson; and in 1740 he went to Balliol College, Oxford, as exhibitioner on Snell's foundation.

00A new departure, however, was made by Willebrord Snell of Leiden in his Cyclometria, published in 1621.

00For the purposes of the calculator a solution erring in excess was also required, and this Snell gave by slightly varying the former construction.

00To compare it on this score with the fundamental proposition of Archimedes, the latter must be put into a form similar to Snell's.

00II) whose centre is 0, AC its chord, and HK the tangent drawn at the middle point of the arc and bounded by OA, OC produced, then, according to Archimedes, AMC AC. In modern trigonometrical notation the propositions to be compared stand as follows: 2 tan 20 >2 sin 28 (Archimedes); tan 10+2 sin 3B>0> 3 sin B (Snell).

00Grienberger, using Snell's method, calculated the ratio correct to 39 fractional places. ?

00C. Huygens, in his De Circuli Magnitudine Inventa, 1654, proved the propositions of Snell, giving at the same time a number of other interesting theorems, for example, two inequalities which may be written as follows 8 - chd B }- 4 chd Bsin a (chd 0-sin >chd 8+3 (chd 0-sin 0).

00As in the case of the process of 6 It is thus manifest that by his first construction Snell gave an approximate solution of two great problems of antiquity.

00His third and only surviving son, George Robert Gleig (1796-1888), was educated at Glasgow University, whence he passed with a Snell exhibition to Balliol College, Oxford.

00The Hessian star catalogue was published in Lucius Barettus's Historia coelestis (Augsburg, 1668), and a number of other observations are to be found in Coeli et siderum in eo errantium observationes Hassiacae (Leiden, 1618), edited by Willebrord Snell.

00His parents were Presbyterians, but he early turned towards the Scottish Episcopal Church, and was confirmed in his first year at Oxford, having entered Balliol College in October 1830 as a Snell exhibitioner from the University of Glasgow.

00In 1771, in the hope of gaining a Snell exhibition and proceeding to Oxford to study for the English Church, he went to Glasgow, where he attended the classes of Thomas Reid.

00Snell, articles in the United Service Magazine (1906-1907).

00Snell, and more recently by P. Picard.

00Snell in 1618, as an appendix to his Observationes Hassiaceae.

00For notable cases of women who have become soldiers, reference may be made to Mary Anne Talbot and Hannah Snell.

00Schmid in Jena, Buhle in Gottingen, Tennemann in Marburg, and Snell in Giessen, with many others, made it the basis of their philosophical teaching, while theologians like Tieftrunk, Staudlin, and Ammon eagerly applied it to Christian doctrine and morality.

00Its modern prosperity is largely due to the enterprise of Frans Snell, one of its merchants in the second half of the 18th century, who first constructed the harbour.

00Snell) A very impressionistic musical picture painted in the style of Maurice Ravel.

00Attempts have been made, principally founded on some remarks of Huygens, to show that Descartes had learned the principles of refraction from the manuscript of a treatise by Willebrord Snell, but the facts are uncertain; and, so far as Descartes founds his optics on any one, it is probably on the researches of Kepler.

00He then returned to Balliol as a Snell exhibitioner; became vicar of High Ercall, Shropshire, in 1750; canon of Windsor, 1762; bishop of Carlisle, 1787 (and also dean of Windsor, 1788); bishop of Salisbury, 1791.

00Since the angles of incidence and refraction are connected by the relation sin i=µ sin r (Snell's Law), µ being the index of refraction of the medium, then the problem may be stated as follows: to determine the value of the angle i which makes D = 2 (i - r) +n (7r - 2r) a maximum or minimum, in which i and r are connected by the relation sin i =µ sin r, µ being a constant.

00WILLEBRORD SNELL (1591-1626), commonly known as

00In 1613 he succeeded his father Rudolph Snell (1546-1613) as professor of mathematics in the university of Leiden.

00(A later recalculation gave 57,033 toises =121,569 yds., after the application of some corrections to the measures indicated by himself.) Snell also distinguished himself as a mathematician, and discovered the law of refraction, in 1621 (see Light).

00He was sent in 1737 to the university of Glasgow, where he attended the lectures of Dr Hutcheson; and in 1740 he went to Balliol College, Oxford, as exhibitioner on Snell's foundation.

00A new departure, however, was made by Willebrord Snell of Leiden in his Cyclometria, published in 1621.

00For the purposes of the calculator a solution erring in excess was also required, and this Snell gave by slightly varying the former construction.

00To compare it on this score with the fundamental proposition of Archimedes, the latter must be put into a form similar to Snell's.

00II) whose centre is 0, AC its chord, and HK the tangent drawn at the middle point of the arc and bounded by OA, OC produced, then, according to Archimedes, AMC AC. In modern trigonometrical notation the propositions to be compared stand as follows: 2 tan 20 >2 sin 28 (Archimedes); tan 10+2 sin 3B>0> 3 sin B (Snell).

00Grienberger, using Snell's method, calculated the ratio correct to 39 fractional places. ?

00C. Huygens, in his De Circuli Magnitudine Inventa, 1654, proved the propositions of Snell, giving at the same time a number of other interesting theorems, for example, two inequalities which may be written as follows 8 - chd B }- 4 chd Bsin a (chd 0-sin >chd 8+3 (chd 0-sin 0).

00As in the case of the process of 6 It is thus manifest that by his first construction Snell gave an approximate solution of two great problems of antiquity.

00The general theorems which enabled him to do this, after a start had been made, are A2n = 11A„A ' n (Snell's Cyclom.), P 2A„A' n - 2A' „AZ, Gre o A 2 ” - A n +A2n or A' n +A2„ (g r1') where A „, A'„ are the areas of the inscribed and the circumscribed regular n-gons respectively.

00His third and only surviving son, George Robert Gleig (1796-1888), was educated at Glasgow University, whence he passed with a Snell exhibition to Balliol College, Oxford.

00The Hessian star catalogue was published in Lucius Barettus's Historia coelestis (Augsburg, 1668), and a number of other observations are to be found in Coeli et siderum in eo errantium observationes Hassiacae (Leiden, 1618), edited by Willebrord Snell.

00His parents were Presbyterians, but he early turned towards the Scottish Episcopal Church, and was confirmed in his first year at Oxford, having entered Balliol College in October 1830 as a Snell exhibitioner from the University of Glasgow.

00In 1771, in the hope of gaining a Snell exhibition and proceeding to Oxford to study for the English Church, he went to Glasgow, where he attended the classes of Thomas Reid.

00Snell, articles in the United Service Magazine (1906-1907).

00Snell, and more recently by P. Picard.

00Snell in 1618, as an appendix to his Observationes Hassiaceae.

00For notable cases of women who have become soldiers, reference may be made to Mary Anne Talbot and Hannah Snell.

00Schmid in Jena, Buhle in Gottingen, Tennemann in Marburg, and Snell in Giessen, with many others, made it the basis of their philosophical teaching, while theologians like Tieftrunk, Staudlin, and Ammon eagerly applied it to Christian doctrine and morality.

00Its modern prosperity is largely due to the enterprise of Frans Snell, one of its merchants in the second half of the 18th century, who first constructed the harbour.

00There are two ratings that a helmet should have: a Snell rating and a DOT (Department of Transportation).

00The Snell ratings tend to be more accurate as the tests use on the helmets are tougher and closer to reality.

00If a helmet does not have a Snell rating, a DOT rating will ensure the helmet is standard enough to use.

00Almost all full-face helmets are Snell approved since they are commonly used in motorcycle road racing like the MotoGP and Grand Prixs.

00Popular alumni from the school include Mark Andrews, Bob Backlund, Earl Mindell, Issac Snell and Phil Hansen.

00

The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.