The Saphea Arzachelis by Profat Tibbon (Jacob ben Makir), better known under the name of prophatius Judaeus, in a treatise dated 1263 http://www.astrolabes.org/saphea.htm
Extractions: The Saphea Arzachelis Many would argue that the highest level ever achieved by the astrolabe was an instrument style introduced by Gemma Frisius (1508-1555) in Louvain, Belgium in the middle of the 16th century. This instrument, called the "Astrolbum (sic) Catholicum" by Gemma, included innovations in the instrument itself and a standard of artistic execution that greatly influenced European instrument manufacturing. Hans Dorn (1430-1509) of Vienna produced an astrolabe in 1486 with virtually the same format as the Astrolabum Catholicum (the instrument survives and is in Poland). There is no way of knowing whether Gemma ever saw or heard of Dorn's astrolabe and simultaneous inventions in a time of rapid progress are not unusual. Gemma's "Astrolabum Catholicum" was an attempt to make an astronomical instrument that could be used anywhere by a wide range of users. An ordinary astrolabe requires a separate plate for each latitude which makes it impractical to produce an instrument that can be used anywhere at reasonable cost and convenience of use. In addition, the ordinary astrolabe, as flexible as it is, is not well suited for certain types of problems, particularly those expressed in celestial latitude and longitude. In order to overcome these shortcomings, Gemma Frisius designed an instrument that had an ordinary astrolabe on one side and adopted a form of astrolabe that can be used at any latitude for the other side and included a magnetic compass in the throne. This form makes a lot of sense since different problems are better suited for one type of astrolabe or the other.
TIBBON, Jakob Ben Makir Translate this page In allen Wissenschaften bewandert genoß er hohes Ansehen bei Juden und Nichtjuden.J. ist auch unter dem Namen Don Profiat oder prophatius Judaeus bekannt. http://www.bautz.de/bbkl/t/tibbon_j_b_m.shtml
Extractions: Band XII (1997) Spalten 25-27 Autor: Udo Tavares Werke: A) Überss., Mathematik und Astronomie (1) Euklid »Sefer ha-yesodot« (Elementa) ca. 1255 (2) Euklid »Sefer ha-matanot« (Data) 1272 (3) Euklid » illuf ha-mabbatim« (Optik) (4) Qust ibn L q »Al-'Amal bial-kurra al-Nuj miyya«, »Maamar be-khaddur ha-shamayim be- ugim« (Traktat über die Armillarsphäre) 1256 (5) Ibn al-Haitham »Quawl f Hay'at-'Alam«, »Maamar ba-tekhuna« oder »Sefer ha-tekhuna« (Traktat der Astronomie) 1. Hälfte d. 70iger J. d. 13 Jh.s (6) A mad ibn al-Saff r »Kit b al-'Amal bi al-Asturlab«, »Maamar be-shimmush ha-atz erolab« (Traktat über den Gebrauch des Astrolabs) (7) Autolycos von Pitane »Maamar alqus ba-kaddur bi-tenua« (Traktat des Autolycos über die Bewegung der Sphäre) 1273 (8) Menelaos von Alexandrien »Sefer Mileus ba-temunot ha-kadduriyyot« (Traktat über die Sphären) 1273? (9) J bir ibn Afla »Qitzur Elmegis i li-Vetolomaus« (Kompendium des Almagest des Ptolemaios) (10) Ptolemaios, Almagest »Be-qeshet ha-iggul« (Über den Bogen des Kreises) (11) Ibrahim ibn Ya
Isis 61, 1970-80, 1989 61, 1970 vol. 80, 1989. bearbeitet von Stuart Jenks. Das Zeitschriftenfreihandmagazin, zu dem diese Datei gehört, bildet eine geschützte Datenbank. Richard I. HARPER, prophatius Judaeus and the http://www.phil.uni-erlangen.de/~p1ges/zfhm/isis3.html
ONE BOOK, 1393 YEARS - A History Of The Almagest ben Machir ibn Tibbon (12361312), known in Latin as prophatius, he was a Jewish doctor working at the University of http://www.star-names.freeserve.co.uk/almagest.html
Extractions: ONE BOOK, 1393 YEARS - A history of the Almagest 1.1 Introduction One book dominated astronomy for nearly one-thousand four-hundred years. This was the Almagest of Claudius Ptolemy. Why was just one book so influential and so dominant that it took so long to be surpassed? 1.2 Ptolemy Ptolemy lived in Egypt in the period when it was part of the Roman Empire. We know very little about him personally and the dates of his life (AD.100 to 178) are only approximate. He worked in the city of Alexandria. Alexandria is located on the northern (Mediterranean) coast of Egypt. It was a city renowned for learning and had a famous library and museum. Possibly, Ptolemy himself worked in one or other of these institutions. Ptolemy wrote in Greek, which was the scientific and philosophical language of his day. He is famous for writing many books on scientific subjects. These are: "Mathematical Syntaxis" (The Almagest) Astronomy "On the Apprations of the Fixed Stars and a Collection of Prognostics" Astronomy
TIMELINE 13th CENTURY Page Of ULTIMATE SCIENCE FICTION WEB GUIDE CHRONOLOGY of the History of Science Fiction, Science, and Fantasy from 1200 A.D. to 1300 A.D. known as "prophatius", also of the Tibbon family) Smith, pp.209210 who invented a type of Quadrant, translated http://www.magicdragon.com/UltimateSF/timeline13.html
Extractions: Return to Ultimate SF Table of Contents May be posted electronically provided that it is transmitted unaltered, in its entirety, and without charge. We examine both works of fiction and important contemporaneous works on non-fiction which set the context for early Science Fiction and Fantasy. There are hotlinks here to authors, magazines, films, or television items elsewhere in the Ultimate Science Fiction Web Guide or beyond. Most recently updated: 13 Apr 2003 (48 expanded to 59 Kilobytes). It also utilizes facts from Volume I of D.E. Smith's " History of Mathematics " [(c) 1921 by David Eugene Smith; (c) 1951 by May Luse Smith; New York: Dover, 1958]. Arguably the best book on the century is " The Thirteenth, Greatest of Centuries " by J. J. Walsh [New York, 1907]. Executive Summary of the Century Major Books of the Decade 1200-1210 Major Books of the Decade 1210-1220 Major Books of the Decade 1220-1230 ... Where to Go for More : 51 Useful Reference Books This Century marks the final flowering of Chivalry: Armored Knights on horseback, and the bloody Fourth through Eighth
Quadrants: Prophatius Astrolabe Quadrant You are here Explore the collections / Quadrants / prophatius astrolabequadrant. Quadrants prophatius astrolabe quadrant. Page 1 of 1. http://www.nmm.ac.uk/collections/unicorn/chartList.cfm?Category=Quadrants&name=P
Full Alphabetical Index List of mathematical biographies indexed alphabetically Prony, Gaspard de (1015*) Prthudakasvami ( 263) prophatius ( ben Tibbon) (198) Prüfer, Heinz (41 http://www-groups.dcs.st-and.ac.uk/~history/Indexes/Full_Alph.html
NAV1060: Prophatius Astrolabe Quadrant You are here Explore the collections / Quadrants / prophatius astrolabe quadrant/ (NAV1060). Tuesday 18 May 2004. prophatius astrolabe quadrant (NAV1060). http://www.nmm.ac.uk/collections/collectionsDetail.cfm?ID=NAV1060
Tibbon Biography of Jacob ben Tibbon (12361312) Jacob ben Tibbon is also known as prophatius. He was a distinugished Jewish medical man who worked in the medical http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Tibbon.html
Extractions: Jacob ben Tibbon is also known as Prophatius. He was a distinugished Jewish medical man who worked in the medical faculty of the University of Monpellier. He was the grandson of Samuel ben Judah ibn Tibbon who is famed as a translator. Jacob ben Tibbon is himself known as a translator as well as a mathematician and an astronomer. He translated into Hebrew many Arabic versions of Greek works, Euclid 's Elements Ptolemy 's Almagest as well as certain Arabic works by al-Ghazali and others. He wrote Jacob's Quadrant in which he describes a quadrant of his own invention. This work contains a table of 11 fixed stars which are to be used in the construction of the instrument. Jacob ben Tibbon also wrote Luhot (Tables) a book of astronomical tables giving ascensions of certain stars at Paris. These tables are mentioned in Dante's Divine Comedy.
Tibbon Jacob ben Tibbon is also known as prophatius. He was a distinugished Jewish medicalman who worked in the medical faculty of the University of Monpellier. http://www-gap.dcs.st-and.ac.uk/~history/Mathematicians/Tibbon.html
Extractions: Jacob ben Tibbon is also known as Prophatius. He was a distinugished Jewish medical man who worked in the medical faculty of the University of Monpellier. He was the grandson of Samuel ben Judah ibn Tibbon who is famed as a translator. Jacob ben Tibbon is himself known as a translator as well as a mathematician and an astronomer. He translated into Hebrew many Arabic versions of Greek works, Euclid 's Elements Ptolemy 's Almagest as well as certain Arabic works by al-Ghazali and others. He wrote Jacob's Quadrant in which he describes a quadrant of his own invention. This work contains a table of 11 fixed stars which are to be used in the construction of the instrument. Jacob ben Tibbon also wrote Luhot (Tables) a book of astronomical tables giving ascensions of certain stars at Paris. These tables are mentioned in Dante's Divine Comedy.
The Astrolabe Quadrant by Jacob ben Mahir ibn Tibbon (12361304), more widely known by his Latin name of prophatius Judaeus or Profeit Tibbon http://www.astrolabes.org/QUADRANT.HTM
Extractions: The Astrolabe Quadrant The earliest known description of an astrolabe reduced to a quadrant with no moving parts was in 1288 by Jacob ben Mahir ibn Tibbon (1236-1304), more widely known by his Latin name of Prophatius Judaeus or Profeit Tibbon. Tibbon's treatise was quickly improved by Peter Nightingale whose account received wide distribution. The instrument was quickly named the quadrans novus (new quadrant) to differentiate it from the traditional quadrant or quadrans vetus (old quadrant). The basic idea behind the idea of the quadrans novus is that the stereographic projection that defines the components of a planispheric astrolabe is just as valid if the astrolabe parts are folded into a single quadrant. The result is an instrument that can perform many of the functions of a standard astrolabe at much lower cost, but without the intuitive representation of the sky provided by the rotating rete,. It is not clear how popular the astrolabe quadrant became as few examples survive. There were, however, a number of treatises on the instrument so there is reason to believe that many were made, perhaps of cardboard or wood. Further, it is possible that brass quadrants were not as highly prized as true astrolabes due to their simplicity and were recycled into other instruments. The astrolabe quadrant was more popular in the Ottoman Empire from the 17th century until the early 20th century The astrolabe quadrant in the picture is not a specific instrument but contains the arcs and scales that can be considered typical on a 14th or 15th century
PQ Index 69*) Privalov, Ivan (150*) Privat de Molières, Joseph (216) Proclus Diadochus(1316) Prony, Gaspard de (1015*) Prthudakasvami (263) prophatius (ben Tibbon http://www-gap.dcs.st-and.ac.uk/~history/Indexes/PQ.html
Extractions: J ean-Baptiste-Joseph Delambre (1749-1822) the French astronomer and some-time historian of astronomy, was born in Amiens and died in Paris. Although as an accomplished astronomer he undertook detailed work on the planet Uranus, not to mention his work in computing new tables for the major planets, Delambre is perhaps best remembered (given the usual practice of science) as an historian of astronomy. Without doubt, this means his justly famous multiple-volume classic, Histoire de l'Astronomie Moderne
National Maritime Museum Both sides of this example are engraved as a prophatius, or astrolabic http://www.nmm.ac.uk/server_process.php?request=setTemplate:singlecontent&co
The Astrolabe Quadrant reduced to a quadrant with no moving parts was in 1288 by Jacob ben Mahir ibn Tibbon(12361304), more widely known by his Latin name of prophatius Judaeus or http://www.astrolabes.org/quadrant.htm
Extractions: The Astrolabe Quadrant The earliest known description of an astrolabe reduced to a quadrant with no moving parts was in 1288 by Jacob ben Mahir ibn Tibbon (1236-1304), more widely known by his Latin name of Prophatius Judaeus or Profeit Tibbon. Tibbon's treatise was quickly improved by Peter Nightingale whose account received wide distribution. The instrument was quickly named the quadrans novus (new quadrant) to differentiate it from the traditional quadrant or quadrans vetus (old quadrant). The basic idea behind the idea of the quadrans novus is that the stereographic projection that defines the components of a planispheric astrolabe is just as valid if the astrolabe parts are folded into a single quadrant. The result is an instrument that can perform many of the functions of a standard astrolabe at much lower cost, but without the intuitive representation of the sky provided by the rotating rete,. It is not clear how popular the astrolabe quadrant became as few examples survive. There were, however, a number of treatises on the instrument so there is reason to believe that many were made, perhaps of cardboard or wood. Further, it is possible that brass quadrants were not as highly prized as true astrolabes due to their simplicity and were recycled into other instruments. The astrolabe quadrant was more popular in the Ottoman Empire from the 17th century until the early 20th century The astrolabe quadrant in the picture is not a specific instrument but contains the arcs and scales that can be considered typical on a 14th or 15th century
CHRISTOPH MARX ILLIG GOETHE Translate this page 5. Al-Batani wurde im lateinischen Mittelalter auch als Albategnius bezeichnet,desgleichen as-Zarqali als Arzachel und Jakob ben Machir als prophatius. http://www.aryabhata.de/illig/uranus.html
Extractions: von Franz Krojer Und ein paar Anmerkungen: 5. Al-Batani wurde im lateinischen Mittelalter auch als Albategnius bezeichnet, desgleichen as-Zarqali als Arzachel und Jakob ben Machir als Prophatius. Brosche, Peter: Astronomie der Goethezeit, Textsammlung aus Zeitschriften und Briefen Franz Xaver von Zachs, Thun und Frankfurt am Main 1995; hier: Die Entdeckung der Ceres, Monatliche Correspondenz Gotha 1801. Ekrutt, Joachim W.: Die Kleinen Planeten, Planetoide und ihre Entdeckungsgeschiche, Stuttgart 1977. Toomer, G. J.: Ptolemy's Almagest, Princeton 1998. Voigt, Hans-Heinrich: Das Universum, Stuttgart 1994 (Reclam). Waerden, B. L. van der: Die Astronomie der Griechen, Darmstadt 1988.
Tibbon Jacob ben Tibbon is also known as prophatius. He was a distinugished Jewish medicalman who worked in the medical faculty of the University of Monpellier. http://intranet.woodvillehs.sa.edu.au/pages/resources/maths/History/Tbbn.htm
Extractions: Previous (Alphabetically) Next Welcome page Jacob ben Tibbon is also known as Prophatius. He was a distinugished Jewish medical man who worked in the medical faculty of the University of Monpellier. He was the grandson of Samuel ben Judah ibn Tibbon who is famed as a translator. Jacob ben Tibbon is himself known as a translator as well as a mathematician and an astronomer. He translated into Hebrew many Arabic versions of Greek works, Euclid 's Elements Ptolemy 's Almagest as well as certain Arabic works by al-Ghazali and others. He wrote Jacob's Quadrant in which he describes a quadrant of his own invention. This work contains a table of 11 fixed stars which are to be used in the construction of the instrument. Jacob ben Tibbon also wrote Luhot (Tables) a book of astronomical tables giving ascensions of certain stars at Paris. These tables are mentioned in Dante's Divine Comedy.
Listes Des Collections Patrimoniales De L'Observatoire De Paris Translate this page _. CADRAN ASTRONOMIQUE dit de prophatius Turquie, 19° siècle PIA 19.39 Photographieen attente. CADRAN LUNAIRE Chine, ca 1800 / / Anonyme PIA 18.47. http://wwwusr.obspm.fr/monseign/patrimoine/instruments/instruments C.htm
