21. MUSLIM PROFILES - IslamOnline.com thabit ibn qurra en.wikipedia.org 8/23/2004 20000 PM GMT thabit ibn qurra,one of the most famous and prominent Muslim astronomers and mathematicians http://www.islamonline.com/cgi-bin/news_service/profiles.asp

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22. Thabit Ibn Qurra -- Facts, Info, And Encyclopedia Article thabit ibn qurra abu l Hasan ibn Marwan alSabi al Harrani, ( (Click link formore info and facts about 826) 826 – February 18, (Click link for more info http://www.absoluteastronomy.com/encyclopedia/t/th/thabit_ibn_qurra.htm

Thabit ibn Qurra [Categories: 9th century mathematicians, Arab astronomers, Arab mathematicians, 901 deaths, 826 births] Thabit ibn Qurra abu' l'Hasan ibn Marwan al-Sabi al'Harrani (Click link for more info and facts about 826) (Click link for more info and facts about 901) ) was an (A member of a Semitic people originally from the Arabian peninsula and surrounding territories who speaks Arabic and who inhabits much of the Middle East and northern Africa) Arab (A physicist who studies astronomy) astronomer and (A person skilled in mathematics) mathematician . In (Any dialect of the language of ancient Rome) Latin he was known as Thebit Thabit was born in (Click link for more info and facts about Harran) Harran (antique Carrhae), (The land between the Tigris and Euphrates; site of several ancient civilizations; part of what is now known as Iraq) Mesopotamia (now (A Eurasian republic in Asia Minor and the Balkans; achieved independence from the Ottoman Empire in 1923) Turkey ). At the invitation of Muhammad ibn Musa ibn Shakir, one of the Banu Musa brothers, Thabit went to study in (Capital and largest city of Iraq; located on the Tigris River)

23. Thabit Ibn Qurra --  Encyclopædia Britannica thabit ibn qurra Arab mathematician, astronomer, physician, and philosopher, arepresentative of the flourishing ArabIslamic culture of the 9th century. http://www.britannica.com/eb/article-9071897

Home Browse Newsletters Store ... Subscribe Already a member? Log in Content Related to this Topic This Article's Table of Contents Thabit ibn Qurra Print this Table of Contents Shopping Price: USD $1495 Revised, updated, and still unrivaled. The Official Scrabble Players Dictionary (Hardcover) Price: USD $15.95 The Scrabble player's bible on sale! Save 30%. Merriam-Webster's Collegiate Dictionary Price: USD $19.95 Save big on America's best-selling dictionary. Discounted 38%! More Britannica products Thabit ibn Qurra  Encyclopædia Britannica Article Page 1 of 1 born c. 836, , Syria died 901, Baghdad, Iraq in full Al-Sabi' Thabit ibn Qurra al-Harrani Arab mathematician, astronomer, physician, and philosopher, a representative of the flourishing Arab-Islamic culture of the 9th century. Thabit was a scion of a prominent family settled in Harran Thabit ibn Qurra... (75 of 286 words) var mm = [["Jan.","January"],["Feb.","February"],["Mar.","March"],["Apr.","April"],["May","May"],["June","June"],["July","July"],["Aug.","August"],["Sept.","September"],["Oct.","October"],["Nov.","November"],["Dec.","December"]];

24. Encyclopædia Britannica Topic thabit ibn qurra. Encyclopædia Britannica Related Articles. Islamicmathematics musical theory Go to Index Browse List of Abbreviations http://www.britannica.com/eb/topic?idxStructId=589570&typeId=13

25. Th\^abit Ibn Qurra - Mathematics And The Liberal Arts Discusses the life and work of Th\^abit ibn qurra, focusing on his work on thePythagorean Theorem. Th\^abit gave two proofs of this theorem (both http://math.truman.edu/~thammond/history/Thabit.html

To expand search, see The Islamic World . Laterally related topics: The Hindu-Arabic Numerals Abu Abdullah Muhammed ibn Musa al Khwarizmi Omar Khayyam (abu-l-Fath Omar ibn Ibrahim Khayyam) Nasir al-Din al-Tusi , and Abu Kamil (b. 850) The Mathematics and the Liberal Arts pages are intended to be a resource for student research projects and for teachers interested in using the history of mathematics in their courses. Many pages focus on ethnomathematics and in the connections between mathematics and other disciplines. The notes in these pages are intended as much to evoke ideas as to indicate what the books and articles are about. They are not intended as reviews. However, some items have been reviewed in Mathematical Reviews , published by The American Mathematical Society. When the mathematical review (MR) number and reviewer are known to the author of these pages, they are given as part of the bibliographic citation. Subscribing institutions can access the more recent MR reviews online through MathSciNet Mathematics Teacher Elements , which was the basis for the translation by Gerard of Cremona. Reprinted in

26. Comments On Th\^abit Ibn Qurra Comments on Th\^abit ibn qurra. Comments http://math.truman.edu/cgi-bin/thammond/makebibcomment.pl?code=General&cat=Thabi

27. Loq-Man Translations There they worked with Hunayn and later also with thabit ibn qurra. thabit ibnqurra ibn Marwan alSabi al-Harrani was born in the year 836 CE at Harran http://www.loqmantranslations.com/ArabicFacts/ArabTranslators.html

ARAB TRANSLATORS Home Sitemap Company About us Services Translation Software Localization ... Consulting Translators Forum Translator's Form Translator's Help Contact Us Abu Zayd Hunayn ibn Ishaq al-Ibadi (808 - 873) Hunayn ibn Ishaq is most famous as a translator. He was not a mathematician but trained in medicine and made his original contributions to the subject. However, as the leading translator in the House of Wisdom at one of the most remarkable periods of mathematical revival, his influence on the mathematicians of the time is of sufficient importance to merit his inclusion in this archive. His son Ishaq ibn Hunayn, strongly influenced by his father, is famed for his Arabic translation of Euclid's Elements. Hunayn's father was Ishaq, a pharmacist from Hira. The family were from a group who had belonged to the Syrian Nestorian Christian Church before the rise of Islam, and Hunayn was brought up as a Christian. Hunayn became skilled in languages as a young man, in particular learning Arabic at Basra and also learning Syriac. To continue his education Hunayn went to Baghdad to study medicine under the leading teacher of the time. However, after falling out with this teacher, Hunayn left Baghdad and, probably during a period in Alexandria, became an expert in the Greek language. Hunayn returned to Baghdad and established contact with the teacher with whom he had fallen out. The two became firm friends and were close collaborators on medical topics for many years.

28. Math Forum - Ask Dr. Math Swetz ascribes this proof to abu l Hasan thabit ibn qurra Marwanal Harrani (826901). It s the second of the proofs given by thabit ibn qurra. http://mathforum.org/library/drmath/view/55457.html

Associated Topics Dr. Math Home Search Dr. Math Pythagorean Theorem Proof (Thabit ibn Qurra) Date: 03/28/2002 at 20:39:21 From: Natalie Bramlett Subject: Proving Pythag. th from cut-the-knot.com problem #24 Dr.Math, I am working on a proof from cut-the-knot.com, #24. I don't understand exactly what it is saying that I have to prove. I tried making the base triangle and 3,4,5 triangle and then going from there, but I don't know how they are forming the other triangles. If you could help me in any way I would greatly appreciate it. Thanks, Natalie Date: 03/28/2002 at 23:26:24 From: Doctor Peterson Subject: Re: Proving Pythag. th from cut-the-knot.com problem #24 Hi, Natalie. I presume you are referring to http://www.cut-the-knot.org/pythagoras/ http://mathforum.org/dr.math/ Associated Topics High School Geometry High School Triangles and Other Polygons Search the Dr. Math Library: Find items containing (put spaces between keywords): Click only once for faster results: [ Choose "whole words" when searching for a word like age.

29. MuslimHeritage.com - Topics thabit ibn qurra was born as a Christian, but his sympathies were with the ArabMuslims thabit ibn qurra also had a grandson called Ibrahim ibn Sinan, http://www.muslimheritage.com/topics/default.cfm?TaxonomyTypeID=25&TaxonomySubTy

30. MuslimHeritage.com - Topics 836AD, thabit ibn qurra (to write later on the Balance) is born in Turkey.840849AD, The traveller Suleiman reaches China. Tales of his trip become the http://www.muslimheritage.com/timeline/chronology.cfm

Chronology of major events in Muslim Heritage This is a short and incomplete list of major developments made by Muslims during the 9th to 16th Centuries. Shortcut to: th th th th ... th Centuries. th Century Muslim merchants reach China (Canton). Foundation of a paper factory in Baghdad; the first in history outside China. The Muslims use different materials from the Chinese, though. This is a development that would subsequently revolutionise learning. The paper industry spreads from Baghdad, to Syria and further West, until it reaches about a century later Europe (Spain) via Morocco. Mash'allah writes on the Astrolabe. He was one of the earliest astronomers and astrologers in Islam. Only one of his writings is extant in Arabic, but there are many medieval Latin and Hebrew translations of it. His most popular book in the Middle Ages was the `De scientia motus orbis,' translated by G. Cremonna in the twelfth century. Al-Tabari writes on Astronomy. Harun al-Rashid gives Charlemagne a clock that struck the hours. Foundation of the city of Fez by the Idrisids in Morocco.

31. Encyclopedia Of Astronomy And Astrophysics » Thabit Ibn Qurra, Abu'l-Hasan (836 thabit ibn qurra, Abu lHasan (836–901). DOI 10.1888/0333750888/4050; PublishedNovember 2000. Icon Full text (PDF, 20K) http://eaa.iop.org/index.cfm?action=summary&doc=eaa/4050@eaa-xml

32. Encyclopedia Of Astronomy And Astrophysics » Ibrahim, Ibn Sinan Ibn Thabit Ibn Ibrahim, ibn Sinan ibn thabit ibn qurra (908–46). DOI 10.1888/0333750888/3737;Published November 2000. Icon Full text (PDF, 16K) http://eaa.iop.org/index.cfm?action=summary&doc=eaa/3737@eaa-xml

33. Thabit Ibn Qurra Biography thabit ibn qurra biography and related resources. thabit ibn qurra abu l Hasan ibn Marwan alSabi al Harrani, (826 – February 18, 901) was an Arab http://www.biographybase.com/biography/ibn_Qurra_Thabit.html

Biography Base Home Link To Us Search Biographies: Browse Biographies A B C D ... Z Thabit ibn Qurra Biography Thabit ibn Qurra abu' l'Hasan ibn Marwan al-Sabi al'Harrani , (826 – February 18, 901) was an Arab astronomer and mathematician. In Latin he was known as Thebit. Thabit and his pupils lived in this midst. He worked in Baghdad and he occupied himself with mathematics, astronomy, mechanics, medicine and philosophy. His native language was Syriac, which was the eastern Aramaic dialect from Edessa, and he knew well also Greek. He translated from Greek Apollonius, Archimedes, Euclid and Ptolemy. Thabit had revised translation of Euclid Elements of Hunayn ibn Ishaq. He had also rewritten the Hunayn's translation of Ptolemy's Almagest and he translated Ptolemy's Geography, which later became very known. Later Thabit's patron was the Abbasid Caliph al-Mu'tadid (reigned 892–902) and Thabit very soon became his personal friend and the visitor of his court. There are just a few original Thabit's works that were preserved. Thabit has developed a theory about the trepidation and oscilation of the equinoctial points, of which many scolars debated in the Middle Ages. According to Copernicus Thabit has determined the length of the sidereal year 365d 6h 9m 12s (an error of 2s). He published his observations of the Sun. In mathematics Thabit discovered an equation for determining the amicable numbers.

34. Thabit Ibn Qurrah Al-Harrani (826-901) Library Of Congress Citations 1987 Title uvres d astronomie / thabit ibn qurra ; texte betabli et traduit par 901 thabit ibn qurra, d. 901 Notes His Matematicheskie traktaty, http://www.malaspina.edu/~mcneil/cit/citlcqurra.htm

Thabit ibn Qurrah al-Harrani (826-901) : Library of Congress Citations The Little Search Engine that Could Down to Name Citations National Library of Canada LC Online Catalog ... COPAC Database (UK) Book Citations [4 Records] Author: Thabit ibn Qurrah al-Harrani, d. 901. Uniform Title: Selections. Russian. 1984 Title: Matematicheskie traktaty / Sabit ibn Korra ; sostavitel' B.A. Rozenfel'd ; otvetstvennyfi redaktor toma A.P. kIlUshkevich. Published: Moskva : Izd-vo "Nauka", 1984. Description: 391 p. : ill. ; 27 cm. Series: Nauchnoe nasledstvo ; t. 8 LC Call No.: Q60 .N3 t. 8 QA27.A67 ISBN: 6.30rub Notes: Translations from the Arabic by B.A. Rozenfel'd et al. Includes index. Bibliography: p. 382-[385]. Subjects: Mathematics, Arab. Other authors: Rozenfel'd, B. A. (Boris Abramovich) kIlUshkevich, A. P. (Adol'f Pavolovich) Control No.: 84217609 //r933 Author: Thabit ibn Qurrah al-Harrani, d. 901. Uniform Title: A0dead al-mutarhabbah. Title: Kiteab al-A0dead al-mutarheabbah / li-Thabit ibn Qurrah ; tarhqeiq Arhmad Sa0eidean. Published: [Amman : s.n., 1977] ([S.l.] : Marteabi0 Dear al-Sha0b) Description: 56 p. ; 24 cm. LC Call No.: QA242 .T45 1977 Notes: Title on p. [4] of cover: Amicable numbers. "Tishrein al-Awwal 1977." Includes bibliographical references (p. 30-31). Subjects: Amicable numbers Early works to 1800. Other authors: Saidan, A. S. Other titles: A0dead al-mutarhabbah. Amicable numbers. Control No.: 87963184 /NE

35. Science Central - Al-Sabi Thabit Ibn Qurra Al-Harrani Biography of thabit (836901) Al-Sabi thabit ibn qurra al-Harrani. PopulatiryHit 16 Visit 5. Details. Gives information on background and http://www.sciencecentral.com/site/496047

Friday, 2 September, 2005 Home Submit Science Site Set as Homepage Add to Favorite ... Contact search for Directories Agriculture Anomalies and Alternative Science Astronomy Biology ... Technology Category: Science Math History People ... REPORT BROKEN LINK Al-Sabi Thabit ibn Qurra al-Harrani Populatiry: Details document.write(''); Gives information on background and contributions to non-euclidean geometry, spherical trigonometry, number theory and the field of statics. Was an important translator of Greek materials, including Euclid's Elements, during the Middle Ages. URL Title Thabit Description Biography of Thabit (836-901) Category: Traffic Analysis document.write(''); document.write(''); document.write(''); Related sites Fourier - Jean Baptiste Joseph Fourier (1768-1830) (Populatiry: ): Baron, mathematical physicist, French Revolution, a teacher, a secret policeman, ... Fermat - Pierre de Fermat (1601-1665) (Populatiry: ): From `A Short Account of the History of Mathematics' (4th ... Gauss - Carl Friedrich Gauss (1777-1855) (Populatiry: ): Gauss' Biography, Formulae, properties, Gauss' Life in Charts, Quotes, Doing ...

36. History Of Astronomy: Persons (I) ibn qurra see thabit ibn qurra (836901); ibn qurra see Ibrahim, ibn Sinan ibnthabit ibn qurra Ibrahim, ibn Sinan ibn thabit ibn qurra (908-946) http://www.astro.uni-bonn.de/~pbrosche/persons/pers_i.html

History of Astronomy Persons History of Astronomy: Persons (I) Ibn Al-Banna, al-Marrakushi (1256-1321) Short biography, references and links (MacTutor Hist. Math.) Ibn Haiyan, Jabir (?-803) Short biography (Or see here or here Ibn Qurra: see Thabit Ibn Qurra (836-901) Ibn Qurra: see Ibrahim, ibn Sinan ibn Thabit ibn Qurra (908-946) Ibn Rushd [Averroes; Abul Walid Mahommed Ibn Achmed, Ibn Mahommed Ibn Roschd] (1128-1198) Short biography and references From the Catholic Encyclopedia, 1913 Short biography (Or see here or here Ibn Sina [Avicenna] (980-1037) Short biography and references (MacTutor Hist. Math.) Short biography and references From the Catholic Encyclopedia, 1913 Short biography (Or see here or here Very short biography (Eric Weisstein's Treasure Trove) Crater Avicenna (lunar feature) Ibrahim, ibn Sinan ibn Thabit ibn Qurra (908-946) Short biography and references (MacTutor Hist. Math.) Ingalls, Albert (1888-1958) Very short biography (Eric Weisstein's Treasure Trove) Inghirami, Giovanni (1779-1851)

37. History Of Astronomy: Persons (Q) Very short biography and reference (infoplease.com). qurra see thabit ibnqurra (836901); qurra see Ibrahim, ibn Sinan ibn thabit ibn qurra (908-946) http://www.astro.uni-bonn.de/~pbrosche/persons/pers_q.html

History of Astronomy Persons History of Astronomy: Persons (Q) Qadi Zada, al'Rumi (1364-1436) Short biography and references (MacTutor Hist. Math.) Quensel, Conrad (1676-1732) Very short biographical data and links With a short biography in Swedish. Quetelet, Lambert Adolphe (1796-1874) Short biography and references (MacTutor Hist. Math.) Very short biography and reference (infoplease.com) Qurra: see Thabit Ibn Qurra (836-901) Qurra: see Ibrahim, ibn Sinan ibn Thabit ibn Qurra (908-946) Wolfgang R. Dick . Created: 16 Jan 1995. Latest update: 19 June 2001

38. The Time Of Al-razi thabit ibn qurra developed the theory of amicable numbers. Abu Hassan thabitibn qurra Marawan alHarrani, that is, from Harran, Mesopotamia, http://www.levity.com/alchemy/islam14.html

History of Islamic Science 3 Based on the book Introduction to the History of Science by George Sarton (provided with photos and portraits) Edited and prepared by Prof. Hamed A. Ead These pages are edited by Prof. Hamed Abdel-reheem Ead, Professor of Chemistry at the Faculty of Science -University of Cairo, Giza, Egypt and director of the Science Heritage Center E-mail: ead@frcu.eun.eg Web site: http://www.frcu.eun.eg/www/universities/html/shc/index.htm Back to Islamic Alchemy Back to reference library The Time of Al-Razi Second Half of Ninth Century The whole ninth century was essentially a Muslim century. This more clear in the second half than of the first, since all the scientific leaders were Muslims, or at any rate were working with and for Muslims and wrote in Arabic. Cultural Background Abbasid Caliph Al-Mutawakkil (847-861) continued to protect men of science, chiefly the physicians, and he encouraged the school of translators headed by Hunain ibn Ishaq. Da ud al-Zahiri founded a new school of theology, based upon a more literal interpretation of the Qur'an; however, did not survive very long. Muslim published a new collection of traditions, arranged according to legal topics, like Bukhari's, but more theoretical. The Egyptian Dhul-Nun is generally considered the founder of Sufism, that is, of Muslim mysticism.

39. The Time Of Al-razi Abu Ishaq Ibrahim ibn Sinan ibn thabit ibn qurra. Born in 9089, died in 946.Grandson of thabit ibn qurra (qv second half of ninth century); http://www.levity.com/alchemy/islam15.html

History of Islamic Science 4 Based on the book Introduction to the History of Science by George Sarton (provided with photos and portraits) Edited and prepared by Prof. Hamed A. Ead These pages are edited by Prof. Hamed Abdel-reheem Ead, Professor of Chemistry at the Faculty of Science -University of Cairo, Giza, Egypt and director of the Science Heritage Center E-mail: ead@frcu.eun.eg Web site: http://www.frcu.eun.eg/www/universities/html/hamed2.htm Back to Islamic Alchemy The Time of Al-Mas'udi First Half of Tenth Century The overwhelming superiority of Muslim culture continued to be felt throughout the tenth century. Indeed, it was felt more strongly than over, not only the foremost men of science were Muslims, but also because cultural influences are essentially cumulative. By the beginning, or at any rate by the middle of the century, the excellence of muslim science was already so well established, even in the West, that each new arabic work benefited to some extent by the prestige pertaining to all. To be sure, other languages, such as Latin, Greek, or Hebrew were also used by scholars, but the works written in those languages contained nothing new, and in the field of science, as in any other, when one ceases to go forward, one already begins to go backward. All the new discoveries and the new thoughts were published in arabic. strangely enough, the language of the Qur'an had thus become the international vehicle of scientific progress. The development of Muslim culture was fostere in Spain by the eighth Umayyad caliph of the west, Abd al-Rahman II, the advances of Muslim science continued to take place almost extensively in the east.

40. Entrez PubMed thabit ibn qurra s Epitome of Galen s Book on SevenMonth Children. Weisser U.Publication Types Biography Historical Article MeSH Terms Greek World http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=1

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