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Christiaan Huygens
?????	14 April 1629 The Hague , Netherlands
?????	8 July 1695 (aged 66) Netherlands
??????????	Netherlands, France
???????	Dutch
???????????????	Physics Mathematics Astronomy Horology
???????	Royal Society of London French Academy of Sciences
???????????	University of Leiden College of Orange
????????????????	Frans van Schooten John Pell
??????? ?????????	Titan Explanation Saturn's rings Centrifugal force Collision formulae Pendulum clock Huygens?Fresnel principle Wave theory Birefringence First theoretical physicist
???????	Rene Descartes Frans van Schooten Blaise Pascal Marin Mersenne
?????????	Gottfried Wilhelm Leibniz Isaac Newton

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Primary sources, translations [ ????????? ]

• • Treatise on Light translated into English by Silvanus P. Thompson, Project Gutenberg etext.
• De Ratiociniis in Ludo Aleae or The Value of all Chances in Games of Fortune, 1657 Christiaan Huygens' book on probability theory. An English translation published in 1714. Text pdf file.
• Horologium oscillatorium (German translation, pub. 1913) or Horologium oscillatorium (English translation by Ian Bruce) on the pendulum clock
• ΚΟΣΜΟΘΕΩΡΟΣ ( Cosmotheoros ). (English translation of Latin, pub. 1698; subtitled The celestial worlds discover'd: or, Conjectures concerning the inhabitants, plants and productions of the worlds in the planets. )
• Traite de la lumiere or Treatise on light (English translation, pub. 1912 and again in 1962)
• Systema Saturnium 1659 text a digital edition of Smithsonian Libraries
• On Centrifugal Force (1703)
• Huygens' work at WorldCat Archived ????-??-?? at the Wayback Machine
• Christiaan Huygens biography and achievements
• Portraits of Christiaan Huygens

Museums [ ????????? ]

• Huygensmuseum Hofwijck Archived ????-??-?? at the Wayback Machine in Voorburg, Netherlands, where Huygens lived and worked.
• Huygens Clocks Archived ????-??-?? at the Wayback Machine exhibition from the Science Museum, London
• LeidenUniv.nl , Exhibition on Huygens in University Library Leiden ?????:Nl icon

Other [ ????????? ]

• Huygens and music theory Huygens?Fokker Foundation ?on Huygens' 31 equal temperament and how it has been used
• Christiaan Huygens on the 25 Dutch Guilder banknote of the 1950s. Archived ????-??-?? at the Wayback Machine
• How to pronounce "Huygens" Archived ????-??-?? at the Wayback Machine