21. Timeline Of Islamic Science And Technology - Wikipedia, The Free Encyclopedia Studied a slight variant of thabit ibn qurra s theorem on amicable numbers.1AlBaghdadi also wrote texts comparing the three systems of counting and http://en.wikipedia.org/wiki/Timeline_of_Islamic_science_and_technology

Wikimedia needs your help in the final days of its fund drive. See our fundraising page The Red Cross and other charities also need your help. Timeline of Islamic science and technology From Wikipedia, the free encyclopedia. Contents General remarks Timeline of Islamic science and technology VIIth century VIIIth century ... edit General remarks All year dates are given in the Gregorian calendar except where noted. edit Timeline of Islamic science and technology edit VIIth century edit VIIIth century - [petroleum; civil engineering] The streets of the newly constructed Baghdad are paved with tar , coming from the petroleum that oozes in natural oil fields in the region. - [cosmetics] Ziriyab (Blackbird) starts a beauty institute in Spain. - [] Al-Ama'i, Zoology, Botany, Animal Husbandry. - [mathematics] Al-Khwarizmi (latinized name, Algorizm). Developed the " calculus of resolution and juxtaposition" (hisab al-jabr w'al-muqabala), more briefly refered to as al-jabr, or algebra . [1] gives an idea on the utility of this development: "Algebra was a unifying theory which allowed rational numbers irrational numbers geometrical magnitudes , etc., to all be treated as "algebraic objects". It gave

22. 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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23. 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)

24. 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"]];

25. 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

26. 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.

27. 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

Wednesday, 7 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 ...

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. 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

30. 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

31. 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.

32. 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

33. 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.

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. 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

36. 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

37. Thabit Ibn Qurrah (Thebit), 836-901 C.E. Founder of Statics; Astronomer; Extended concept of traditional geometry togeometrical algebra and proposed theories of nonEuclidean geometry, http://www.unhas.ac.id/~rhiza/saintis/qurra.html

THABIT IBN QURRAH (THEBIT) (836 - 901 C.E.) by Dr. A. Zahoor Thabit ibn Qurrah, known in the West as Thebit , is known for his work on mechanics, astronomy, pure mathematics and geometry. Thabit ibn Qurrah ibn Marwan al-Harrani was born in 836 C.E. at Harran (present Turkey) and died in Baghdad in 901 C.E. He joined the scientific team of the great Muslim mathematician Muhammad Ibn Musa Ibn Shakir at Baghdad, which was established by the Abbasid Caliphs. Thabit was a pioneer in extending the concept of traditional geometry to geometrical algebra and proposed theories that led to the development of non-Euclidean geometry, spherical trigonometry, integral calculus and real numbers. He used arithmetic terminology to study several aspects of conic sections (parabola and ellipse). His algorithm for computing the surface area and volume of solids is in fact what we came to know later as the integral calculus. Thabit's original work on Mechanics and Physics involves examining conditions of equilibrium of bodies, beams and levers. Some historians have recognized him as the Founder of Statics. He was among the early critics of Ptolemaic views on astronomy. He also criticized several theorems of Euclid's elements and proposed important improvements. Thabit added the ninth sphere to Ptolemic astronomy. Some early investigators criticized his work on 'Trepidation of Equinoxes' and several centuries later Tycho Brahe (1546-1601) improved upon his work. Thabit analyzed several problems on the movements of sun and moon and wrote treatises on sundials. Beer and Madler in their famous work Der Mond (1837) mention a surface feature of the moon after Thabit (Thebit). It is a prominent circular plain thirty miles in diameter in Section No. 8. The intrusion of a small circular plain has disfigured its circular wall. A small crater has thrust itself in on the eastern side of this plain.

38. Thabit Ibn Qurrah (Thebit), 836-901 C.E. Founder of Statics; Astronomer; Extended concept of traditional geometry togeometrical algebra and proposed theories of nonEuclidean geometry, http://www.cyberistan.org/islamic/qurra.html

THABIT IBN QURRAH (THEBIT) (836 - 901 C.E.) by Dr. A. Zahoor Biography Available in the E-Book

39. 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

40. 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)

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