Chaucer wrote a treatise on how to build one of these & use it to compute the position of a star
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Full text of "A treatise on the astrolabe;" - Internet Archive  Contents of Chaucer's Treatise : the five Parts. ... Lists of stars marked on the Rete of an astrolabe of the thirteenth century. .... Mr Brae has made considerable use of it, and gives, in his preface, a careful and interesting account of it .... Clearly, these " conclusions" are closely linked to- gether, and one ought to follow the other...
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Astrolabe - Wikipedia  An astrolabe is an elaborate inclinometer, historically used by astronomers, navigators, and astrologers. Its many uses include locating and predicting the positions of the Sun, Moon, planets, and stars, ... About 550 AD the Christian philosopher John Philoponus wrote a treatise on the astrolabe in Greek, which is the earliest...
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using an astrolabe | Marcha's Two-Cents Worth  Apr 16, 2016 ... Posts about using an astrolabe written by Marcha's Two-Cents Worth. ... In 1391, medieval writer and poet, Geoffrey Chaucer, wrote a treatise on the subject for his son, describing how to build one as well as its use. .... following that line to the tropical zodiac on the ecliptic circle, to determine its position.
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August 15th: Chaucer's Astronomy & Treatise on the Astrolabe | 365 ...  Aug 15, 2009 ... But what do these lines have to with astronomy? ... Chaucer is using an astronomical reference here, the fact that the ... poetry, but in one of his prose works, the Treatise on the Astrolabe. ... With an astrolabe, you can determine the location of the sun and the stars in the sky for any particular day and time.
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An Introduction to the Astrolabe - Darin Hayton  work of starsalmost certainly refers to the sundials he was ... monius (died post 517 CE) reportedly wrote a treatise on the ... texts, one on the construction and one on the use of the astro- labe. .... Chaucer was able to give his son an astrolabe because the in- ... of these paper astrolabes to determine the best time to sign a.
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Chaucer, Geoffrey - The Parliament of Fowls: A modernisation of ...  The Parliament of Fowls - Chaucer - a new complete downloadable English modernisation. ... The long day did its pages swiftly turn. For out of old fields, as ... That lay between them till the shadows gather,. And how .... Fearing error, no wit had I to choose. To enter .... When every fowl comes there his mate to take,. Of every...
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Galileo facts, information, pictures | Encyclopedia.com articles about ...  During Galileo's professorship at Pisa, he composed an untitled treatise on ... The first notation concerning this theory occurs in the notebooks of Sarpi in 1595. .... to Florence as mathematician and philosopher to the grand duke of Tuscany, and ... His telescope was inadequate to resolve Saturn's rings, which he took to be...
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Euclid's Elements - Wikiquote  Sir Henry Billingsley's first English version of Euclid's Elements, 1570. ... 300 BC. It is a collection of definitions, postulates (axioms), propositions ... The thirteen books cover Euclidean geometry and the ancient Greek version of ... The work also includes an algebraic system that has become known as geometric algebra,...
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'Eureka!' - The Story of Archimedes and the Golden Crown  The story of how Archimedes discovered a method for measuring the volume of an ... The goldsmith did as he had been ordered, and on he appointed day, he .... He based his theory on the Archimedes Principle, and on Archimedes' work on levers. .... They included compound pulley systems, a planetarium showing the...
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Stargazing with Galileo - Sky & Telescope  Jul 31, 2008 ... When Galileo Galilei first turned a telescope to the heavens four centuries ... The spheres spun at various rates, such that the Sun completely ... Their positions shift noticeably as they move around Jupiter, and ... on January 7, 1610, he discovered that the planet was accompanied by three "stars" in a line.
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The Distances to Nearby Stars | Astronomy 801: Planets, Stars ...  Since this shift was not observed by the Greeks, nor by later astronomers like ... The first scientist to do so was Friedrich Bessel in 1838. ... We can setup a right triangle if we use half of the measured angle that the star appears to move in 6 months. ... To calculate the parallax of any star, you can use the same trigonometric...
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here  One of his most celebrated works, intended for publication around 1633, was .... For students of mathematics, the enormous benefit of analytic geometry is that ... By introducing coordinate geometry, Descartes was merely following in the .... Descartes, Rene, Discourse on Method, Optics, Geometry, and Meteorology,...
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Geoffrey Chaucer - Author, Poet - Biography.com  Nov 23, 2015 ... Synopsis; Early Life; Public Service; Major Works; Later Life; Death. Cite This Page. English poet Geoffrey Chaucer wrote the unfinished work, The Canterbury Tales. .... A Treatise on the Astrolabe is one of Chaucer's nonfiction works. ... a complex scientific tool, and is thought to do so with admirable clarity.
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Coming of Age in the Milky Way - PDF Archive  Jul 23, 2014 ... As one might expect, in the course of so long a ... spoken about the universe would ever have been uttered. ... The rosy-fingered Dawn, then Perseus, pluck ...... Still, these distortions in the popular conception of Galileo work to his favor, ...... He wrote a few scientific papers, but they were almost worthless.
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Telescopes - Educational Web Sites  Apr 3, 2014 ... P--1 Links and Tables ... and the universe beyond--for all these (as well as taking pictures, dissecting colors etc.) ... For more, I recommend just one book ... and much of what follows below is described much better in his book. ... in 1668 a telescope whose light was collected by a curved mirror, made of an...
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Medieval and Twentieth Century Navigation - ER - NASA  Nov 30, 2004 ... They used simple arithmetic and a technique called Dead Reckoning ... (Actually, Columbus judged the ship's speed through his own ... The navigator also needed a compass and a log book to record his .... many Ships have been retarded in their voyages, and many lost. .... It is almost as accurate as well.
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The Heavens - World Treasures: Beginnings | Exhibitions - Library of ...  The "Emperor's Astronomy"(dedicated to the Holy Roman Emperor Charles ... The Copernican views provided the basis for the later work of Johannes .... Hevelius (1611-1687) published Selenographia, the first lunar atlas. The book also deals with the construction of telescopes and with the observation of celestial bodies in...
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Free Flashcards about ASTRONOMY - StudyStack  THIS BRITISH OBSERVATORY WAS COMPLETED IN 1676 FROM PLANS PREPARED BY CHRISTOPHER WREN, GREENWICH. THIS CONSTELLATION...
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Astrophel and Stella - Wikipedia  Probably composed in the 1580s, Philip Sidney's Astrophil and Stella is an English sonnet ... Pleasure might cause her read, reading might make her know, ... Sir Philip Sidney: The Major Works including "Astrophil and Stella" (Oxford: Oxford...
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Kepler's legacy: telescopes and geometrical optics, 1611-1669 ...  Kepler's theory of the telescope is introduced by a formal but merely ... First, some combinations of a convex objective lens and a concave ocular lens ... the convexity of the objective lens the greater the magnification (proposition 115). .... was meant to give mathematical authority to the new instrument by demonstrating 'the...
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On Scientific Observation: Isis: Vol 99, No 1  Field naturalists have coined a term of art for the allatonceness of virtuoso ... at a glance he could name them, usually correctly, but if asked how he knew them .... with the publication of Luke Howard's On the Modification of Clouds (1803). ... based on Howard's original tripartite scheme of cirrus, cumulus, and stratus had...