Geometry.Net - Scientists: Ibn Qurra Thabit

The Garden Of Archimedes: Pythagoras
scheda3_1.gif, The demonstration of thabit ibn qurra. The following demonstrationis attributed to the Arab mathematician thabit ibn qurra (826901).
http://www.math.unifi.it/archimede/archimede_inglese/pitagora/exh_pitagora/sched

Extractions: The white area with the two yellow triangles forms the square of the hypothenuse, while with the two green triangles, equal to the previous ones, gives the squares of the cathets. Naturally, even here the visual evidence must be supported by a demonstration, which can be performed by anybody. It seems that the previous demonstration was found in 1855 by G. B. Airy , the Greenwich observatory astronomer from 1836 to 1881. In the white part of the figure, Airy wrote the poem that follows: I am, as you may see,
Il Giardino Di Archimede: Pitagora
Translate this page scheda3_1.gif, La dimostrazione di thabit ibn qurra. La dimostrazione seguenteè attribuita al matematico arabo thabit ibn qurra (826-901).
http://www.math.unifi.it/archimede/archimede/pitagora/exh_pitagora/scheda3.html
Manuscripts Of Astrological Image Magic
Catalogue 1497. De imaginibus. thabit ibn qurra. CAT. Canterbury, St Augustine'sAbbey, 1275. pp. 7191. s. xvi, 1510. Liber prestigiorum. thabit ibn qurra. MSS.
http://duke.usask.ca/~frk302/MSS/images.html
Math Forum - Ask Dr. Math
Pythagorean Theorem Proof (thabit ibn qurra). It's the second of the proofsgiven by thabit ibn qurra. The first one is essentially the 2 above.
http://mathforum.org/library/drmath/view/55457.html

Extractions: Associated Topics Dr. Math Home Search Dr. Math 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.com/pythagoras/ http://mathforum.org/dr.math/ Associated Topics
The Math Forum Trig/Calc Problem Of The Week Archive
To find out more about him, visit the MacTutor History of Mathematics archivesIbrahim ibn Sinan ibn thabit ibn qurra. Highlighted solutions
http://mathforum.org/calcpow/solutions/solution.ehtml?puzzle=45
QURRA
thabit ibn qurra. (836901 AD). thabit ibn qurra ibn Marwan al-Sabi al-Harraniwas born in the year 836 AD at Harran (present Turkey).
http://hahsim.s5.com/scientists/qurra.html

Extractions: Free Web site hosting - Freeservers.com THABIT IBN QURRA (836-901 A.D.) Thabit Ibn Qurra Ibn Marwan al-Sabi al-Harrani was born in the year 836 A.D. at Harran (present Turkey). As the name indicates he was basically a member of the Sabian sect, but the great Muslim mathematician Muhammad Ibn Musa Ibn Shakir, impressed by his knowledge of languages, and realising his potential for a scientific career, selected him to join the scientific group at Baghdad that was being patronised by the Abbasid Caliphs. There, he studied under the famous Banu Musa brothers. It was in this setting that Thabit contributed to several branches of science, notably mathematics, astronomy and mechanics, in addition to translating a large number of works from Greek to Arabic. Later, he was patronised by the Abbasid Caliph al-M'utadid. After a long career of scholarship, Thabit died at Baghdad in 901 A.D. Thabit's major contribution lies in mathematics and astronomy. He was instrumental in extending the concept of traditional geometry to geometrical algebra and proposed several theories that led to the development of non-Euclidean geometry, spherical trigonometry, integral calculus and real numbers. He criticized a number of theorems of Euclid's elements and proposed important improvements. He applied arithmetical terminology to geometrical quantities, and studied several aspects of conic sections, notably those of parabola and ellipse. A number of his computations aimed at determining the surfaces and volumes of different types of bodies and constitute, in fact, the processes of integral calculus, as developed later.
Loq-Man Translations
above. There they worked with Hunayn and later also with thabit ibn qurra.Hunayn became thabit ibn qurra (836 901). thabit ibn qurra
http://www.loqmantranslations.com/ArabicFacts/ArabTranslators.html

Extractions: Consulting Translators 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.
Islam
Translate this page Elles sont l'oeuvre de mathématiciens comme thabit ibn qurra (826-901) et suscitéespar les besoins de la nouvelle société, en astronomie, en optique, en
http://www.sfrs.fr/e-doc/islam.htm
The University Of Illinois At Chicago Department Of Classics And Mediterranean S
Forthcoming Publications With Amos Bertolacci, thabit ibn qurra's Concise Expositionof Aristotle's Metaphysics Text, Translation, Commentary, in thabit
http://www.uic.edu/las/clas/David_Reisman.html

Extractions: Medieval Arabic-Islamic Philosophy (particularly Avicenna and the Avicennan Tradition); Graeco-Arabic translation movement in medieval Islam (social and political contexts); Arabic history and historiography (Mamluk period); Arabic codicology and paleaography; medieval Arabic grammar and literary theory.
Biography-center - Letter T
thabit_ibn_QAYS.html; thabit ibn qurra, Abu'l wwwhistory.mcs.st-and.ac.uk/~history/Mathematicians/thabit.html;Thackeray, William
http://www.biography-center.com/t.html

Extractions: random biography ! Any language Arabic Bulgarian Catalan Chinese (Simplified) Chinese (Traditional) Croatian Czech Danish Dutch English Estonian Finnish French German Greek Hebrew Hungarian Icelandic Indonesian Italian Japanese Korean Latvian Lithuanian Norwegian Polish Portuguese Romanian Russian Serbian Slovak Slovenian Spanish Swedish Turkish 340 biographies Tabern, Donalee L.
Arabic Numerals
Ibrahim ibn Sinan ibn thabit ibn qurra (908946) who introduced a methodof integration in studying the quadrature of the parabola.
http://www.arabicnumerals.cwc.net/

Extractions: By M Erhayiem The IBM World Book Encyclopaedia raises the question as how the Arabic Numerals originated (!?) as appeared in an article contributed by Nadine L. Verderber, Ph.D., Prof. of Mathematics, Southern Illinois Univ., Edwardsville. The article states, as such, "Scholars do not know how Arabic numerals originated." "The Hindus developed the zero sometime after A.D. 600." The World Book Multimedia Encyclopaedia has largely ignored the work of the Scientists during the Islamic and the Arabic medieval era. The contributions of the Muslims and Arabs in the field of Mathematics were very significant. The great Harvard historian of science, Professor George Sarton wrote in his monumental Introduction to the History of Science[4]: "From the second half of the 8th to the end of the 11th century, Arabic was the scientific, the progressive language of mankind... When the West was sufficiently mature to feel the need of deeper knowledge, it turned its attention, first of all, not to the Greek sources, but to the Arabic ones." O'Connor and Robertson[2] published various articles about the contribution of those forgotten brilliance. Muhammad ibn Musa al-Khawarizmi Yaqub ibn Ishaq al-Kindi (801-873 A.D.), a Philosopher and Mathematician, who wrote many works on arithmetic, including: the numbers, relative quantities, measuring proportion and time, and numerical procedures. He also wrote on space and time.
Muslim Contribution To Science
826 901 ibn qurra, thabit; mathematician. 865- 923 Razi, al- (Rhazes); alchemist,philosopher, physician. 839- 923 Tabari, al-; historian, theologian.
http://www.umr.edu/~msaumr/reference/articles/science/contributors.html
Encyclopædia Britannica
Abu Said Sinan ibn thabit ibn qurra University of St.Andrews Brief introductionto the life and works of this Iraqi mathematician known for writings in
http://search.britannica.com/search?query=ibn battutah&fuzzy=N&ct=igv&start=6&sh
Encyclopædia Britannica
thabit ibn qurra Arab mathematician, astronomer, physician, and philosopher, arepresentative of the flourishing ArabIslamic culture of the 9th century.
http://search.britannica.com/search?query=ibn battutah&fuzzy=N&ct=eb&start=8&sho
Muslim Scientist And Thinkers -- INDEX
Jabir ibn Haiyan died 803 Mohammad Bin Musa alKhawarizmi died 840 Yaqub ibn Ishaqal-Kindi 800 thabit ibn qurra 836 Ali ibn Rabban al-Tabari 838 Abu Abdullah
http://www.princeton.edu/~humcomp/scholars.html
The Time Of Al-razi
IBRAHIM ibn SINAN Abu Ishaq Ibrahim ibn Sinan ibn thabit ibn qurra.Born in 9089, died in 946. Grandson of thabit ibn qurra (qv
http://www.levity.com/alchemy/islam15.html

Extractions: 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 Time Of Al-razi
thabit ibn qurra Abu Hassan thabit ibn qurra Marawan alHarrani, that is, from Harran,Mesopotamia, born 826-27 (or 835-36), flourished in Bagdad, died in 901.
http://www.levity.com/alchemy/islam14.html

Extractions: 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.
Ayman's Home Page
Khaldun ibn Sina Jabir ibn Haiyan Jalal alDin Rumi Mohammad Bin Musa al-KhawarizmiMohammad ibn Zakariya al-Razi Omar al-Khayyam thabit ibn qurra Yaqub ibn
http://ahram.org/islamic/muslim_scientist.htm
UK Moon Sighting Home Page
Contents Jabir ibn Haiyan died 803 Mohammad Bin Musa alKhawarizmi died 840 Yaqubibn Ishaq al-Kindi 800 thabit ibn qurra 836 Ali ibn Rabban al-Tabari 838 Abu
http://www.ummah.net/moonsighting/scholars.htm
Biblioteca
Translate this page 890 DESCRIPCION DE LAS FIGURAS FORMADAS POR thabit ibn qurra. 891 LIBROSOBRE EL INSTRUMENTO QUE INDICA LAS HORAS thabit ibn qurra. 1239?
http://es.geocities.com/soliombra/biblioteca.htm

Extractions: El mundo de los Relojes de Sol en una página Juan Serra Busquets Relojes de sol, Rellotges de sol, Relógios de sol, Orologio solari, Sundials, Cadrans solaires, Sonnenuhren, Gnomónica BIBLIOTECA Esta es la relación de los libros sobre gnomónica que yo conozco, salvo error u omisión. Cualquier aportación que ayude a aumentarla será bienvenida. Gracias. LIBROS CONOCIDOS POR REFERENCIAS VARIAS, HASTA EL SIGLO XIX MANUSCRITOS LIBROS DE LOS SIGLOS XX Y XXI AUTORES MALLORQUINES ... LIBROS EN ITALIANO LIBROS ANTIGUOS CONOCIDOS POR REFERENCIAS VARIAS 30 a.C DE ARCHITECTURA (TOMO IX) M. L. Vitruvio DE TEMPORIBUS y TEMPORUM RATIONE San Bede el Venerable (673-735) TIBERIUS HOROLOGIUM Monjes del norte de Inglaterra DESCRIPCION DE LAS FIGURAS FORMADAS POR... Thabit Ibn Qurra LIBRO SOBRE EL INSTRUMENTO QUE INDICA LAS HORAS...Thabit Ibn Qurra TRACTATUS DE QUADRANTE Sacrobosco QUADRANS VETUS Johannes Anglicus MANUSCRITO DESCRIBIENDO MUCHOS TIPOS DE RELOJES Abul Hhassan QUADRANS NOVUS Profetius QUADRATUM HORARIUM GENERALE J. Regiomontanus

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