61. Natur Des Lichts Translate this page snellius. snellius, willebrordus (willebrord snell van Roijen), geboren 1580in Leiden. snellius war ein niederländischer Mathematiker und Physiker. http://members.aol.com/mblicht1/snellius.htm

Snellius Snellius, Willebrordus (Willebrord Snell van Roijen), geboren 1580 in Leiden. 1621 fand er das nach ihm benannte Snelliussche Brechungsgesetz.

62. Snell's Law Song C Am G G7. I sing of the genius of willebrord snell. C Em F C. A mathematician wholived long ago. C Em F C. But we prefer willebrord van Roijen snell . C C G7 C. http://www.haverford.edu/physics-astro/course_materials/phys213/Snell.htm

Snell’s Law Song Tune: Sweet Betsy from Pike (traditional) C C C Come listen and learn, I’ve a story I tell, C Am G I sing of the genius of Willebrord Snell C Em F C A mathematician who lived long ago C C C In the Netherlands where the Rhine river does flow. Willebrord van Roijus Snell (Note that the first name is actually pronounced “Villbrort”, but in the song is pronounced “Vill-e-brort”.) C C C He set for his mind occupations of worth, C Am G Improved navigation and measured the Earth! C Em F C He gave us the sine law, that wonderful guy, C C C And he made more precise calculation of pi! C F (or C) G (or G7) Am (or C) Singin’ n1 sine theta-sub-1, hey, hey, hey, C F (or C) G (or G7) C Equals n2 sine theta-sub-2, hip hooray! C C C His greatest feat came in Sixteen Twenty-one, C Am G When optics as science was really begun! C Em F C While flashes of lightning illumined his page, C C C He wrote down Snell’s law, his great gift to the age! C C C So if you wear glasses or like to fry ants, C Am G Be grateful your lenses were not made by chance! C Em F C Astronomers hail him with each new-found star!

63. Willebrord Snell Van Royen - Wikipedija willebrord snell van Royen. Iz Wikipedije, proste enciklopedije.willebrord snell van Royen (tudi snellius, snellitjs, snellitis http://sl.wikipedia.org/wiki/Willebrord_Snell_van_Royen

Willebrord Snell van Royen Iz Wikipedije, proste enciklopedije. Willebrord Snell van Royen (tudi Snellius, Snellitjs, Snellitis ali Snel), nizozemski matematik fizik in astronom Leiden Nizozemska 30. oktober , Leiden. Snell van Royen je predaval matematiko na Univerzi v Leidnu od leta , kjer je nasledil svojega očeta Rudolpha Snella ( ). Prvi je od leta (1615) do začel meriti poldnevniški (meridianski) lok med Alkmaarom in Bergenom zaradi določitve velikosti Zemlje . Pri tem si je pomagal z metodo triangulacije , ki jo je sam razdelal. Postopek je že leta proučeval Frisius km Leta (1621) je Snell, dobro desetletje potem, ko so sestavili prve daljnoglede natančno določil smer lomnjenega svetlobnega žarka skozi steklo . Po matematični poti je leta določil lomni zakon svetlobe ( Snellov zakon ), ki izhaja iz Huygensovega načela c hitrost svetlobe v praznem prostoru in c ' hitrost svetlobe v snovi n pa lomni količnik (kvocient) snovi. Zakon je neodvisno od njega odkril pet let kasneje Descartes leta Istega leta 1621 je Snell še izboljšal Arhimedove metode in določil na 35 (34) decimalk in pri tem uporabljal enak mnogokotnik kot van Roomen leta (1597) s številom stranic n Views Članek Pogovor Uredi Zgodovina strani Personal tools Vpis Navigacija Glavna stran Portal občestva Trenutni dogodki Trenutne spremembe ... Denarni prispevki Išči Orodna škatla Kaj je povezano sem Sorodne spremembe Posebne strani Drugi jeziki English Nederlands Zadnja sprememba 02:22, 24 mar 2004.

64. MSN Encarta - Résultats De La Recherche - Snell George Davis Translate this page Réponses(s) Articles 5 réponse(s) snell Van Royen (willebrord)Mathématicienet physicien hollandais (Leyde, 1580 Id, 1626).Alors http://fr.encarta.msn.com/Snell_George_Davis.html

Accueil MSN Mon MSN Hotmail Rechercher ... S'abonner   Encarta Premium Rechercher Encarta R©sultats de la recherche pour "Snell George Davis" Page sur 1 R©serv© aux abonn©s MSN Encarta Premium. Snell, George Davis Encyclop©die EncartaArticle Snell, George Davis (1903-1996), g©n©ticien am©ricain. Dausset, Jean Encyclop©die EncartaArticle Trouv© dans l'article Dausset, Jean George Snell Encyclop©die EncartaImage Armory Show Encyclop©die EncartaArticle Trouv© dans l'article Armory Show chimique, g©nie Encyclop©die EncartaArticle Trouv© dans l'article chimique, g©nie immunologie Encyclop©die EncartaArticle Trouv© dans l'article immunologie australien, cin©ma Encyclop©die EncartaArticle Trouv© dans l'article australien, cin©ma R©serv© aux abonn©s MSN Encarta Premium. Page sur 1 R©sultats provenant de MSN Search Yahoo! Encyclop©die - George Davis Snell Encyclop©die Accueil George Davis Snell Recherche de sites web Biologiste am©ricain (Bradford, Massachusetts, 1903 — Bar Harbor, Maine, 1996). http://fr.encyclopedia.yahoo.com/articles/s/s0004260_p0.html

65. SmartPedia.com - Free Online Encyclopedia - Encyclopedia Books. Quine. Willard Van Ormand Quine, Willards, Maryland, Willcox, Arizona.Willebroek, willebrord snell, willebrord van Roijen snell. Willem http://www.smartpedia.com/smart/browse/Special:Allpages&from=Wilhelm_Martin_Kutt

Search: Math and Natural Sciences Applied Arts Social Sciences Culture ... Interdisciplinary Categories All pages Wilhelm Martin Kutta Wilhelm Martin Leberecht de Wette Wilhelm Marx Wilhelm Matthias Naeff ... Caption This This document is licensed under the GNU Free Documentation License (GFDL), which means that you can copy and modify it as long as the entire work (including additions) remains under this license. GFDL SOURCE

66. SmartPedia.com - Free Online Encyclopedia - Encyclopedia Books. Henry John Stephen Smith, John Maynard Smith numbers Smooth Smooth functionTalkSmooth function Snake lemma snell, willebrord Snub cube http://www.smartpedia.com/smart/browse/List_of_mathematical_topics_(S-U)

Search: Math and Natural Sciences Applied Arts Social Sciences Culture ... Interdisciplinary Categories List of mathematical topics (S-U) List of mathematical topics A-C D-F G-I ... P-R S-U V-Z Subtopics Mathematicians S S matrix S-plane Saccheri Saccheri, Giovanni Gerolamo ... Set-builder notation Set-theoretic intersection see: Intersection (set theory) Set domain Set-theoretic union see: Union (set theory) Set theory Seven bridges of Königsberg Sexagesimal ... Szeméredi's theorem T T1 space Table of bases Table of derivatives Table of divisors ... Total variation Total variation distance: see Total variation Touchard polynomial Tower of Hanoi Trace ... Typical set U Ulam spiral Ulam, Stanislaw Marcin Ultrafilter Ultrafilter lemma ... Caption This This document is licensed under the GNU Free Documentation License (GFDL), which means that you can copy and modify it as long as the entire work (including additions) remains under this license. GFDL SOURCE

67. Faces snell, willebrord snell discovered the law of refraction. Stefan, JosephStefan. The StefanBoltzmann law. Stokes, George Stokes. Stokes theorem. http://faculty.rmwc.edu/tmichalik/faces.htm

PHYSICS FACES Ampere Andre Marie Ampere made fundamental contributions to electricity and magnetism. Anderson Carl D. Anderson discovered the positron and the muon in 1932. Balmer Johann Balmer discovered the formula for the hydrogen spectrum. Becquerel Henri Becquerel discovered radioactivity in 1896. Bessel Friedrich Bessel. Bessel functions. Biot Jean-Baptiste Biot. Co-discoverer of the Biot-Savart Law. Bohr Niels Bohr made fundamental contributions to quantum theory. Boltzmann Ludwig Boltzmann made fundamental contributions to statistical mechanics. Born Max Born made fundamental contributions to quantum mechanics. Bose Satyendranath Bose. Bose-Einstein statistics. Bosons! Carnot Sadi Carnot: a pioneer in thermodynamics. Cerenkov Pavel Cerenkov discovered what is now called "Cerenkov radiation". Chadwick James Chadwick discovered the neutron in 1932. Christoffel Elwin Christoffel. Christoffel symbols. Clebsch/Gordan Rudolf Clebsch and Paul Gordan. Clebsch-Gordan coefficients. Compton Arthur Compton explained x-ray scattering from electrons in 1923.

68. Snell Physics Faces. willebrord snell (15801626) discovered the law of refraction. http://faculty.rmwc.edu/tmichalik/snell.htm

Physics Faces Willebrord Snell (1580-1626) discovered the law of refraction.

69. Skolavpohode.cz snell, willebrord van Roijen (15801626) Holandský fyzik a optik. Jeobjevitelem zákona lomu. Podrobne zkoumal krivku loxodromu. http://www.skolavpohode.cz/clanek.asp?polozkaID=3937

70. Il Giardino Di Archimede snell, willebrord - Doctrinae triangulorum canonicae libri quattuor. http://www.math.unifi.it/archimede/archimede_inglese/CD_rom/elenco_CD.html

The Garden of Archimedes A Museum for Mathematics Historical Mathematics on CD-rom: A Garden of Archimedes initiative for the History of Mathematics Table of contents I CD 1 CD 2 CD 3 CD 4 ... CD 10 II CD 11 CD 12 CD 13 CD 14 ... CD 20 III CD 21 CD 22 CD 23 CD 1 Bernoulli, Johann - Opera. Losanna e Ginevra, Bousquet, 1747. Clairaut, Alexis Claude - Clairaut, Alexis Claude - Recherches sur les courbes a double courbure. Euler, Leonhard - Lione, Bruyset, 1795. Hermann, Jacob - Phoronomia. Amsterdam, Wetsten, 1716. Lagrange, Joseph Louis - Mecanique analytique. Parigi, Courcier, 1811. Lagrange, Joseph Louis - Theorie des fonctions analytiques. Parigi, Impr. De la Republique, 1797. Mascheroni, Lorenzo - Adnotationes ad calculum integralem Euleri. Pavia, Galeazzi, 1790. Monge, Gaspard - Geometrie descriptive. Parigi, Baudouin, 1799. Papin, Denis - Nouvelle maniere pour lever l'eau. Kassel, Estienne, 1707. Ruffini, Paolo - Teoria generale delle equazioni. Bologna, S. Tommaso, 1799. Simpson, Thomas - A treatise on Algebra. Londra, Nourse, 1745. back to the top of the page how to buy the CD CD 2 Anderson, Alexander -

71. Iþýðý Keþfedenler Hollanda willebrord snell studied law at the University of Leiden but was veryinterested in mathematics and taught mathematics even while he studied law. http://www.kameraarkasi.org/light/mucitler/snell.htm

Willebrord van Roijen SNELL Doðum Tarihi - 1580, Leiden, Hollanda Ölüm Tarihi - 30 Ekim 1626, Leiden, Hollanda Willebrord Snell studied law at the University of Leiden but was very interested in mathematics and taught mathematics even while he studied law. From about 1600 he travelled to various European countries, mostly discussing astronomy. In 1602 he went to Paris where his studies continued. He received his degree from Leiden in 1607. Snell's father, Rudolph Snell (1546-1613), was professor of mathematics at Leiden and, in 1604, Willebrord visited Switzerland with his father. In 1613 he succeeded his father as professor of mathematics at the University of Leiden. In 1617 Snell published Eratosthenes Batavus, which contains his methods for measuring the Earth. He proposed the method of triangulation and this work is the foundation of geodesy. Snell also improved the classical method of calculating approximate values of p by polygons. Using his method 96 sided polygons give p correct to 7 places while the classical method yields only 2 places. van Ceulen's 35 places could be found with polygons of 230 sides rather than 262 . Although he discovered the law of refraction, a basis of modern geometric optics, in 1621, he did not publish it and only in 1703 did it become known when Huygens published Snell's result in Dioptrica. Snell also discovered the sine law.

72. Snell's Law N, O, P, Q, R, S, T, U, V, W, X, Y, Z, Other characters, snell s law,. Print thisarticle, (willebrord snellius, 15801626, Dutch astronomist and mathematician), seerefraction. http://www.amershamhealth.com/medcyclopaedia/medical/Volume I/SNELLS LAW.ASP

Amershamhealth.com Search for: Type a word or a phrase. All forms of the word are searchable. Browse entry words starting with: A B C D ... Other characters Snell's law, (Willebrord Snellius, 15801626, Dutch astronomist and mathematician), see refraction HJS The Encyclopaedia of Medical Imaging Volume I Contacts GE Healthcare Making Waves

73. Onfiles_TOC PULFRICH, Carl. PYTHAGORAS. REY, Jean. RITTER, Johann. snell, willebrord. STOKES,George. THEODORIC OF FREIBOURG. TORRICELLI, Evangelista. VOLTA, Alessandro. http://www.factsonfile.com/newfacts/Onfiles_TOC.asp?ISBN=0816028060

74. Oilfield Glossary: Term 'Snell's Law' seismic waves. It is named for willebrord Snel (1580 to 1626), a Dutchmathematician. snell s law can be written as snell s law. http://www.glossary.oilfield.slb.com/Display.cfm?Term=Snell's law

75. Why You Don’t Believe Fermat’s Principle Finally, in 1621, willebrord snell, a leading mathematical physicistof the Dutch republican tradition, found the solution. The http://www.21stcenturysciencetech.com/articles/fall01/fermat/Fermat.html

Why You Don't Believe Fermat's Principle Laurence Hecht (Full text of editorial from Fall 2001 21st Century Snell's Discovery Fermat's Principle Intention in Nature Confusion over the meaning of the term universal physical principle may be more prevalent in science today than at any time in history. In former times, although great differences existed on this matter, they were usually discussed. Today, we don't even bother. Hence, the most contradictory views coexist within the body of knowledge mis-termed modern science. One of the clearest dividing lines is over the matter of intention in nature. Despite the overwhelming evidence of a purposefulness in natural development, the modern view has replaced the idea of intention with that of mechanism. A theory is called scientific if it provides a credible mechanism, or model, to describe an observable natural phenomena. In one such model, dead objects (often called particles) are assumed to exist and are assigned certain properties, such as attraction, repulsion, or inertia

76. Primary Sources - Other Electronic Formats - Scientific Revolution Home Page: Re Translate this page snell, willebrord - Cyclometricus. Lione, Elsevier, 1621. Lione, Elsevier, 1646snell, willebrord - Doctrinae triangulorum canonicae libri quattuor. http://web.clas.ufl.edu/users/rhatch/pages/03-Sci-Rev/SCI-REV-Home/research-page

Scientific Revolution; Information, Bibliography, Resources, Readings, Biography, Sources, Links T H E S C I E N T I F I C R E V O L U T I O N E L E C T R O N I C P R I M A R Y T E X T S - O T H E R F O R M A T S Professor Robert A. Hatch - University of Florida o VER the last several decades a number of extraordinary primary sources have been available in electronic format. Many primary printed sources have appeared in PDF format, some have been digitized. Many are available for purchase on CD, privately or through your university or local library. The following suggestive, as the number of texts is extensive and growing. If readers know of additional primary texts available in CD or other electronic format, kindly send information to the email address below. Thank you. RAH Historical Mathematics - Index of Contents Compact Disk Number 1 Bernoulli, Johann - Opera. Losanna e Ginevra, Bousquet, 1747.

77. PhotoNotes.org Dictionary - Snell's Law The law was apparently discovered in 1621 by Dutch mathematician willebrord vanRoijen snell (either 1580 or 15911626), but it was first published by French http://photonotes.org/cgi-bin/entry.pl?id=Snellslaw

78. Mediateca Di Santa Teresa snell, willebrord - Doctrinae triangulorum canonicae libri quattuor. http://www.mediabrera.it/m.html

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79. Willebrord Snell Article on willebrord snell from WorldHistory.com, licensed fromWikipedia, the free encyclopedia. Return Index willebrord snell. http://www.worldhistory.com/wiki/W/Willebrord-Snell.htm

World History (home) Encyclopedia Index Localities Companies Surnames ... This Week in History Willebrord Snell Willebrord Snell October 30 ), also known as Snell van Royen or Snellius , was a Dutch astronomer and mathematician , most famous for the law of refraction now known as Snell's law Snell was born at Leiden in . In he succeeded his father Rudolph Snell ( ) as professor of mathematics in the University of Leiden . In he planned and carried into practice a new method of finding the radius of the earth, by determining the distance of one point on its surface from the parallel of latitude of another, by means of triangulation . His work Eratosthenes Batavus ("The Dutch Eratosthenes "), published in , describes the method and gives as the result of his operations between Alkmaar and Bergen op Zoom km ). The actual distance is approximately 111 km. Snell was also a distinguished mathematician, producing a new method for calculating the first such improvement since ancient times. He discovered the law of refraction that is named after him in . He died at Leiden on the October 30 In addition to the Eratosthenes Batavus he published Cyclometria sive de circuli dimensione ), and

80. Encyclopedia4U - Willebrord Snell - Encyclopedia Article willebrord snell. This article is licensed under the GNU Free DocumentationLicense. It uses material from the Wikipedia article willebrord snell . http://www.encyclopedia4u.com/w/willebrord-snell.html

ENCYCLOPEDIA U com Lists of articles by category ... Encyclopedia Home Page SEARCH : Willebrord Snell Willebrord Snell ), also known as Snell van Royen or Snellius , was a Dutch astronomer and mathematician , most famous for the law of refraction now known as Snell's law Snell was born at Leiden in . In he succeeded his father Rudolph Snell ( ) as professor of mathematics in the University of Leiden . In he planned and carried into practice a new method of finding the radius of the earth, by determining the distance of one point on its surface from the parallel of latitude of another, by means of triangulation . His work Eratosthenes Batavus ("The Dutch Eratosthenes "), published in , describes the method and gives as the result of his operations between Alkmaar and Bergen op Zoom km ). The actual distance is approximately 111 km. Snell was also a distinguished mathematician, producing a new method for calculating the first such improvement since ancient times. He discovered the law of refraction that is named after him in . He died at Leiden on the October 30 In addition to the Eratosthenes Batavus he published Cyclometria sive de circuli dimensione ), and

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