1. THABIT IBN QURRA THABIT IBN QURRA http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

2. Thabit Ibn Qurra - Wikipedia, The Free Encyclopedia Thabit ibn Qurra http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

3. THABIT IBN QURRA Thabit Ibn Qurra Ibn Marwan alSabi al-Harrani was born in the year 836 CE atHarran (present Turkey). As the name indicates he was basically a member of http://www.ummah.net/history/scholars/QURRA.html

THABIT IBN QURRA (836-901 C.E.) Thabit Ibn Qurra Ibn Marwan al-Sabi al-Harrani was born in the year 836 C.E. 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 C.E. 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 criticised 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.

4. Thabit AlSabi Thabit ibn Qurra al-Harrani http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

5. Al-Sabi Thabit Ibn Qurra Al-Harrani AlSabi Thabit ibn Qurra al-Harrani http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

6. Thabit Ibn Qurra: Information From Answers.com Thabit ibn qurra thabit ibn Qurra abu l Hasan ibn Marwan alSabi al Harrani , (826 – February 18 , 901 ) was an Arab astronomer and. http://www.answers.com/topic/thabit-ibn-qurra

showHide_TellMeAbout2('false'); Business Entertainment Games Health ... More... On this page: Wikipedia Mentioned In Or search: - The Web - Images - News - Blogs - Shopping Thabit ibn Qurra Wikipedia @import url(http://content.answers.com/main/content/wp/css/common.css); @import url(http://content.answers.com/main/content/wp/css/gnwp.css); Thabit ibn Qurra Thabit ibn Qurra abu' l'Hasan ibn Marwan al-Sabi al'Harrani February 18 ) was an Arab astronomer and mathematician . In Latin he was known as Thebit Thabit was born in Harran (antique Carrhae), Mesopotamia (now Turkey ). At the invitation of Muhammad ibn Musa ibn Shakir , one of the Banu Musa brothers, Thabit went to study in Baghdad at the House of Wisdom . He belonged to the sect of the Harranian Sabians , often confused with the Mandaeans . As star-worshippers, Sabians showed a great interest in astronomy and mathematics . This sect lived in the vicinity of the main center of the Caliphate until , when the Mongols destroyed their last shrine. During Muslim rule, they were a protected minority, and around the time of al-Mutawakkil 's reign their town became a center for philosophical and medical learning. They were joined by the descendants of pagan Greek scholars who, having been persecuted in Europe, settled in lands that became part of the

7. Thabit Ibn Qurra -[ruv.net Information Portal]- Thabit ibn qurra thabit ibn Qurra abu' l'Hasan ibn Marwan alSabi al'Harrani, (826 - February 18, 901) was an Arab astronomer and mathematician. http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

8. Islamic History And Culture - Personalities In Islam Specifically Thabit Ibn Qurra (836 901 CE) Return to Personalities in Islam Index Keywords Islam and History http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

9. Muslims Internet Directory Thabit Ibn Qurra Thabit Ibn Qurra http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

10. Thabit Ibn Qurra Thabit Ibn Qurra, one of the most famous and prominent Muslim astronomers Thabit Ibn Qurra Ibn Marwan alSabi al-Harrani was born in the year 836 CE at http://www.islamonline.com/cgi-bin/news_service/profile_story.asp?service_id=951

11. 9.4 Biograf As.htm Se le conoce como el padre del lgebra. AlSabi Thabit ibn Qurra al-Harrani. Thabit ibn Qurra naci en el a o 826 en Harran, Mesopotamia. http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

12. Thabit Ibn Qurra Thabit ibn Qurra. Thabit ibn QurraMain Page See live article Alphabetical indexThabit ibn QurraThabit ibn Qurra abu' l'Hasan ibn Marwan alSabi http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

13. Thabit Ibn Qurra Thabit ibn Qurra Categories Astronomers, Arab astronomers, Arab mathematicians, 901 deaths, 826 births Thabit ibn Qurra abu' l'Hasan ibn Marwan http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

14. PROMINENT MUSLIMS THABIT IBN QURRA Thabit Ibn Qurra Ibn Marwan alSabi al-Harrani was born in the year 836 CE atHarran (present Turkey). http://islamic-world.net/youth/IbnQurra.htm

15. Thabit thabit ibn qurra was a native of Harran and a member of the Sabian sect. This language was thabit ibn qurra s native language, but he was fluent in both http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Thabit.html

Al-Sabi Thabit ibn Qurra al-Harrani Born: 836 in Harran, Mesopotamia (now Turkey) Died: 18 Feb 901 in Baghdad, (now in Iraq) Click the picture above to see a larger version Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Main index Version for printing Thabit ibn Qurra was a native of Harran and a member of the Sabian sect. The Sabian religious sect were star worshippers from Harran often confused with the Mandaeans (as they are in [1]). Of course being worshipers of the stars meant that there was strong motivation for the study of astronomy and the sect produced many quality astronomers and mathematicians. The sect, with strong Greek connections, had in earlier times adopted Greek culture, and it was common for members to speak Greek although after the conquest of the Sabians by Islam, they became Arabic speakers. There was another language spoken in southeastern Turkey, namely Syriac, which was based on the East Aramaic dialect of Edessa. This language was Thabit ibn Qurra's native language, but he was fluent in both Greek and Arabic. Some accounts say that Thabit was a money changer as a young man. This is quite possible but some historians do not agree. Certainly he inherited a large family fortune and must have come from a family of high standing in the community.

16. Thabit Gives information on background and contributions to noneuclidean 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. http://www-gap.dcs.st-and.ac.uk/~history/Mathematicians/Thabit.html

Al-Sabi Thabit ibn Qurra al-Harrani Born: 836 in Harran, Mesopotamia (now Turkey) Died: 18 Feb 901 in Baghdad, (now in Iraq) Click the picture above to see a larger version Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Main index Version for printing Thabit ibn Qurra was a native of Harran and a member of the Sabian sect. The Sabian religious sect were star worshippers from Harran often confused with the Mandaeans (as they are in [1]). Of course being worshipers of the stars meant that there was strong motivation for the study of astronomy and the sect produced many quality astronomers and mathematicians. The sect, with strong Greek connections, had in earlier times adopted Greek culture, and it was common for members to speak Greek although after the conquest of the Sabians by Islam, they became Arabic speakers. There was another language spoken in southeastern Turkey, namely Syriac, which was based on the East Aramaic dialect of Edessa. This language was Thabit ibn Qurra's native language, but he was fluent in both Greek and Arabic. Some accounts say that Thabit was a money changer as a young man. This is quite possible but some historians do not agree. Certainly he inherited a large family fortune and must have come from a family of high standing in the community.

17. Ibrahim Ibrahim ibn Sinan was a grandson of thabit ibn qurra and studied geometry and in His grandfather thabit ibn qurra had started to view integration in a http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Ibrahim.html

Ibrahim ibn Sinan ibn Thabit ibn Qurra Born: 908 in Baghdad, (now in Iraq) Died: 946 in Baghdad, (now in Iraq) Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Main index Version for printing Ibrahim ibn Sinan was a grandson of Thabit ibn Qurra and studied geometry and in particular tangents to circles. He also studied the apparent motion of the Sun and the geometry of shadows. There is no doubt that had he not died at the young age of thirty-eight, he would have achieved a degree of fame for his mathematical works going even beyond the opinion of Sezgin (see [5] and [6]) that he was:- ... one of the most important mathematicians in the medieval Islamic world. Perhaps his early death robbed him of the chance to make a contribution even more important than that of his famous grandfather. Ibrahim's most important work was on the quadrature of the parabola where he introduced a method of integration more general than that of Archimedes . His grandfather Thabit ibn Qurra had started to view integration in a different way to Archimedes but Ibrahim realised that al-Mahani had made improvements on what his father had achieved. To Ibrahim it was unacceptable that (see for example [1]):-

18. Philosophers : Thabit Ibn Qurra The Window Philsophy on the WWW. Philosophers Section. http://www.trincoll.edu/depts/phil/philo/phils/muslim/qurra.html

Thabit Ibn Qurra Iranian Muslim Philosopher 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 criticised 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.

19. Thabit Ibn Qurra - Wikipedia, The Free Encyclopedia thabit ibn qurra abu l Hasan ibn Marwan alSabi al Harrani, (826 – February 18,901) was an Arab astronomer and mathematician. http://en.wikipedia.org/wiki/Thabit_ibn_Qurra

Wikimedia needs your help in its 21-day fund drive. See our fundraising page Over US$165,000 has been donated since the drive began on 19 August. Thank you for your generosity! Thabit ibn Qurra From Wikipedia, the free encyclopedia. Thabit ibn Qurra abu' l'Hasan ibn Marwan al-Sabi al'Harrani February 18 ) was an Arab astronomer and mathematician . In Latin he was known as Thebit Thabit was born in Harran (antique Carrhae), Mesopotamia (now Turkey ). At the invitation of Muhammad ibn Musa ibn Shakir , one of the Banu Musa brothers, Thabit went to study in Baghdad at the House of Wisdom . He belonged to the sect of the Harranian Sabians , often confused with the Mandaeans . As star-worshippers, Sabians showed a great interest in astronomy and mathematics . This sect lived in the vicinity of the main center of the Caliphate until , when the Mongols destroyed their last shrine. During Muslim rule, they were a protected minority, and around the time of al-Mutawakkil 's reign their town became a center for philosophical and medical learning. They were joined by the descendants of pagan Greek scholars who, having been persecuted in Europe, settled in lands that became part of the Abbasid caliphate . The Muslims were greatly interested in Greek culture and science , collecting and translating many ancient Greek works in the fields of philosophy and mathematics. Although they later became Arabic speakers, in pre-Islamic times, it was common for Sabians to speak

20. 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 its 21-day fund drive. See our fundraising page Over US$165,000 has been donated since the drive began on 19 August. Thank you for your generosity! 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

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