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Topic: Christiaan Huygens

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  Christiaan Huygens - LoveToKnow 1911   (Site not responding. Last check: 2007-10-12)
CHRISTIAAN HUYGENS (1629-1695), Dutch mathematician, mechanician, astronomer and physicist, was born at the Hague on the 14th of April 1629.
Huygens was also in 1656 the first effective observer of the Orion nebula; he delineated the bright region still known by his name, and detected the multiple character of its nuclear star.
This resolution of the original wave is the well-known "Principle of Huygens," and by its means he was enabled to prove the fundamental laws of optics, and to assign the correct construction for the direction of the extraordinary ray in uniaxial crystals.
www.1911encyclopedia.org /Christiaan_Huygens   (1433 words)

 Wikinfo | Christiaan Huygens
Christiaan Huygens (April 14, 1629 - July 8, 1695) was a Dutch mathematician and physicist; born in The Hague.
Christiaan is generally given minor credit for his role in the development of modern calculus.
Huygens was one of the first writers to speculate in detail about life on other planets (although we do not know to which extent ancient writers exercised such speculation, since most of their work has not survived).
www.wikinfo.org /wiki.php?title=Christiaan_Huygens   (451 words)

 Christian Huygens (1629 - 1695)   (Site not responding. Last check: 2007-10-12)
In 1675 Huygens proposed to regulate the motion of watches by the use of the balance spring, in the theory of which he had been perhaps anticipated in a somewhat ambiguous and incomplete statement made by Hooke in 1658.
Huygens fully recognized the intellectual merits of the work, but seems to have deemed any theory incomplete which did not explain gravitation by mechanical means.
From this hypothesis Huygens deduced the laws of reflexion and refraction, explained the phenomenon of double refraction, and gave a construction for the extraordinary ray in biaxal crystals; while he found by experiment the chief phenomena of polarization.
www.maths.tcd.ie /pub/HistMath/People/Huygens/RouseBall/RB_Huygens.html   (1267 words)

 Christiaan Huygens   (Site not responding. Last check: 2007-10-12)
Huygens believed that a pendulum swinging in a large are would be more useful at sea and he invented the cycloidal pendulum with this in mind.
Huygens' work on the collision of elastic bodies showed the error Descartes' laws of impact and his memoir on the topic was sent to the Royal Society in 1668.
Huygens stated that an expanding sphere of light behaves as if each point on the wave front were a new source of radiation of the same frequency and phase.
physics.rug.ac.be /Fysica/Geschiedenis/Mathematicians/Huygens.html   (2302 words)

 Stargazer Online || Christiaan Huygens
Huygens, unlike many of his colleagues in the 17th century, was convinced that the Copernican view was completely accepted by all astronomers except those who "were a bit slow-witted or under the superstitions imposed by merely human authority."
Christiaan Huygens was a contemporary of Robert Hooke, Anton van Leeuwenhoek, Jan Vermeer, and Isaac Newton.
Huygens argued that light behaved as if it were a wave propagating through a vacuum, such as an ocean wave moves through the sea.
www.richardbell.net /huygens.html   (982 words)

 Christiaan Huygens - Wikipedia, the free encyclopedia
Christiaan Huygens (pronounced in English (IPA): [ˈhaɪ.gənz]; in Dutch: [ˈhœy.ɣəns])(April 14, 1629–July 8, 1695), was a Dutch mathematician and physicist; born in The Hague as the son of Constantijn Huygens.
Subsequent to this publication, Huygens discovered that the cycloid was an isochronous curve and, applied to pendulum clocks in the form of cycloidal cheeks, would ensure a regular swing of the pendulum from any height.
Huygens also developed a balance spring clock more or less contemporaneously with, though separately from, Robert Hooke, and controversy over whose invention was the earlier persisted for centuries.
en.wikipedia.org /wiki/Christiaan_Huygens   (838 words)

 Systema Saturnium by Christiaan Huygens: Introduction
Christiaan Huygens (pronounced How'-kenz) was born in The Hague, Netherlands, on April 14, 1629.
Huygens was also interested in geometrical optics and, together with his brother, experimented with grinding lenses for microscopes and telescopes.
Huygens was particularly intrigued by Saturn, mainly because of its puzzling appearance.
www.sil.si.edu /DigitalCollections/HST/Huygens/huygens-introduction.htm   (2795 words)

 Christiaan Huygens (1629-95)   (Site not responding. Last check: 2007-10-12)
Born in The Hague in 1629, Christiaan Huygens was a famous Dutchman for his development of advanced pendulum clocks (1659).
Huygens also contributed significantly to physics: In 1656, he derived the conservation of momentum law, in 1659, he established the idea of centrifugal forces, and in 1678 in Paris, he developed his famous wave theory of light.
Huygens left France in about 1686 for religious reasons, fearing persecution as he was a protestant, visited England in 1689 and then retired to The Hague, where he died in 1695 at age 66.
www.seds.org /messier/xtra/Bios/huygens.html   (408 words)

 Christiaan Huygens Biography | World of Physics
Huygens was born in the Hague, Netherlands, in 1629.
Huygens left his home in 1645 to study law and mathematics at the University of Leiden and, in 1647, he entered the College of Orange in Breda.
While Huygens observed the heavens, the European scientific community was working toward the development of a reliable timekeeping device; such a device was in great demand by the trading industry, which required an accurate clock for use in the navigation of its sailing vessels.
www.bookrags.com /biography/christiaan-huygens-wop   (1484 words)

 Science Museum | Huygens' clocks | Christiaan Huygens   (Site not responding. Last check: 2007-10-12)
Christiaan Huygens was born in The Hague in 1629.
In 1666, Huygens moved to Paris to become the director of the Académie des Sciences.
Huygens returned to the Hague in 1681 and published his second classic work, Traité de la Lumière in 1690.
www.sciencemuseum.org.uk /on-line/huygens/page1.asp   (245 words)

 ESA Science & Technology: Jean-Dominique Cassini and Christiaan Huygens
Huygens came from a wealthy and well-connected Dutch family who traditionally was in the diplomatic service to the House of Orange.
Huygens had realised how to optimise his telescopes by using a new way of grinding and polishing the lenses and in 1655-56 he discovered Titan, Saturn's major satellite.
Huygens' health was never really very good and he suffered from recurring illnesses, during one of which he returned to Holland to recuperate.
sci.esa.int /science-e/www/object/index.cfm?fobjectid=13465   (849 words)

 RNW: Honouring Huygens
Christiaan Huygens, mathematician, physicist, instrument maker and astronomer, was by far the most important scientist of the Dutch Golden Age, the 17
Huygens' fame spread rapidly and in 1665 he got the first and only paying job he ever had: head of Scientific Investigation at the Academie Royale des Sciences in Paris.
When in 1680 Christiaan Huygens returned from France to Holland he was a relatively poor man. The political situation in Europe made a protestant scientist unwanted at the Catholic Academie, and his salary had not been large.
www.radionetherlands.nl /features/science/040419rf.html   (677 words)

 Christiaan Huygens Biography | World of Scientific Discovery
Young Christiaan was also influenced by the mathematician-philosopher René Descartes, a friend of the Huygens family and frequent visitor to their home.
Huygens learned about the "mechanistic" philosophy of nature from Descartes and came to believe that all natural phenomena would one day be explained by science.
Huygens' wave theory of light was similar to that of the wave theory of sound.
www.bookrags.com /biography/christiaan-huygens-wsd   (1488 words)

 Christiaan Huygens
Christiaan Huygens (April 14, 1629–July 8, 1695), was a Dutch mathematician and physicist; born in The Hague as the son of Constantijn Huygens.
Huygens early speculated in detail about life on other planets (although we do not know to what extent ancient writers exercised such speculation, since most of their work has not survived).
Huygens moved back to The Hague in 1681 after suffering serious illness and died there 14 years later on July 8, 1695.
www.mlahanas.de /Physics/Bios/ChristiaanHuygens.html   (497 words)

 ESA Portal - Anniversary of the birth of Christiaan Huygens
Huygens applied himself to the manufacture of telescopes, together with his brother Constantijn, and soon after developed a theory of the telescope.
Huygens became one of the founding members of the French Academy of Sciences in 1666.
Although scientific results obtained by Huygens were second only to those obtained by Newton, the Dutch scientist was not really recognised in his time, nor had he influenced the development of science as he could have done, because he preferred solitary contemplation to team efforts.
www.esa.int /esaCP/SEM1X667ESD_index_0.html   (693 words)

 Christiaan Huygens' telescope lens
Christiaan Huygens (1629-1695) discovered Saturn's moon Titan on March 25, 1655, with the telescope lens shown above.
Christiaan Huygens designed and constructed the telescope together with his brother Constantijn Huygens (1628-1697), who later became a statesman and secretary to the Stadtholder-King William III.
The second text is a verse from the Roman poet Ovid and part of the anagram: Admovere oculis distantia sidera nostris vvvvvvv ccc rr h n b q x that Christiaan Huygens sent to some of his scholar friends in the summer of 1655.
www.xs4all.nl /~carlkop/huyglens.html   (530 words)

 Huygens - Biography - Christiaan Huygens - The Scientific Revolution Home Page - Dr Robert A. Hatch
If that were not enough, Huygen's success in improving lenses led him to focus on the rings of Saturn, the results of which he published in 1659 as the Systema Saturnium.
Huygens was also deeply interested in developing a theory of light, which he completed during his Paris years (1678).
One of his last gestures (typically simple, shrewd, and elegant) Huygens insisted that his unpublished manuscripts and correspondence be deposited with an institution.
web.clas.ufl.edu /users/rhatch/pages/03-Sci-Rev/SCI-REV-Home/resource-ref-read/major-individuals/huygens/08sr-hygns-bio.htm   (784 words)

 Christiaan Huygens
Huygens was involved at the examination of small life forms and microscopic objects like sperms and blood cells.
Huygens presented the correct explanation for the rings in 1656.
With this Huygens is known as the founder of the theory of probabilistics.
www.surveyor.in-berlin.de /himmel/Bios/Huygens-e.html   (1057 words)

 Huygens, Christiaan (1629-1695) -- from Eric Weisstein's World of Scientific Biography
In contradiction to Newton, Huygens correctly believed that light must travel more slowly when it is refracted towards the normal, although this was not proven until experiments by Foucault in the nineteenth century.
Huygens also made important contributions to mechanics, stating that in a collision between bodies, neither loses nor gains "motion" (his term for momentum
Huygens was also the mentor of Leibniz in math and mechanics.
scienceworld.wolfram.com /biography/Huygens.html   (173 words)

 Christiaan Huygens
Dutch mathematician, mechanician, astronomer and physicist, born at the Hague on the 14th of April 1629.
The invention dates from 1656; on the 16th of June 1657 Huygens presented his first "pendulum-clock" to the states-general; and the Horologium, containing a description of the requisite mechanism, was published in 1658.
In 1665 Colbert made to him on behalf of Louis XIV an offer too tempting to be refused, and between the following year and 1681 his residence in the philosophic seclusion of the Bibliotheque du Roi was only interrupted by two short visits to his native country.
www.nndb.com /people/332/000087071   (1176 words)

 The Galileo Project
1681-1695, after Huygens initially returned home because of illness, political pressures suggested he should stay, and he did for the rest of his life, living off income from family property.
When William III was reinstated in 1672, his father and brother got prominent positions, which caused some uncertainty for Huygens in France.
After war broke out in 1672, Huygens stayed at the Académie under his protection, and when he died while Huygens was in Holland in 1683, Huygens did not feel it safe to return to France.
galileo.rice.edu /Catalog/NewFiles/huygens.html   (475 words)

 References for Huygens
P Dupont and C S Roero, The treatise 'De ratiociniis in ludo aleae' of Christiaan Huygens, with the 'Annotationes' of Jakob Bernoulli ('Ars conjectandi', Part I), presented in an Italian translation, with historical and critical commentary and modern solutions (Italian), Mem.
L Giacardi, On the approximate calculation of the length of the circumference in Huygens and in Lambert, Rend.
I Schneider, Christiaan Huygens' contribution to the development of a calculus of probabilities, Janus 67 (4) (1980), 269-279.
www-groups.dcs.st-and.ac.uk /~history/References/Huygens.html   (1074 words)

 Stichting Huygens-Fokker: Christiaan Huygens
Huygens' name is invariably associated with the division of the octave into 31 equal parts.
Huygens didn't know about any of these writings and instruments; he only knew of the existence of Vicentino's archicembalo via Salinas.
Huygens, being an inventor of countless appliances, also has designed a keyboard instrument with 31 strings per octave.
www.xs4all.nl /~huygensf/english/huygens.html   (390 words)

 BBC News | SCI/TECH | Centuries-old clock puzzle solved
Huygens was a remarkable figure whose astronomical observations led him to try to design an accurate clock, Georgia Tech researcher Mike Schatz told BBC News Online.
Huygens had two clocks side by side and he found that even when they began out of sync, they soon got into a rhythm where the pendulum on one moved as if it were a mirror image of the other.
Huygens' clocks were very accurate for their time and this is why he was probably the first person to observe the phenomenon.
news.bbc.co.uk /1/hi/sci/tech/1820643.stm   (415 words)

 NASA - Christiaan Huygens
Christiaan Huygens, (HY guhnz), (1629-1695), was a Dutch physicist, astronomer, and mathematician.
Huygens was born on April 14, 1629, in The Hague, the Netherlands.
Huygens worked with his brother Constantijn to develop skill in grinding and polishing spherical lenses.
www.nasa.gov /worldbook/huygens_worldbook.html   (302 words)

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