Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Abū_Sahl_al-Qūhī> ?p ?o }
- Abū_Sahl_al-Qūhī abstract "Abū Sahl Wayjan ibn Rustam al-Qūhī (al-Kūhī; Persian: ابوسهل بیژن کوهی Abusahl Bijan-e Koohi) was a Persian mathematician, physicist and astronomer. He was from Kuh (or Quh), an area in Tabaristan, Amol, and flourished in Baghdad in the 10th century. He is considered one of the greatest Muslim geometers, with many mathematical and astronomical writings ascribed to him.He was the leader of the astronomers working in 988 AD at the observatory built by the Buwayhid Sharaf al-Dawla in Badhdad. He wrote a treatise on the astrolabe in which he solves a number of difficult geometric problems.In mathematics he devoted his attention to those Archimedean and Apollonian problems leading to equations higher than the second degree. He solved some of them and discussed the conditions of solvability. For example, he was able to solve the problem of inscribing a regular pentagon into a square, resulting in an equation of fourth degree. He also wrote a treatise on the "perfect compass", a compass with one leg of variable length that allows to draw any conic section: straight lines, circles, ellipses, parabolas and hyperbolas. It is likely that al-Quhi invented the device.Like Aristotle, al-Quhi proposed that the heaviness of bodies vary with their distance from the center of the Earth.The correspondence between al-Quhi and Abu Ishaq al-Sabi, a high civil servant interested in mathematics, has been preserved.".
- Abū_Sahl_al-Qūhī birthDate "0940".
- Abū_Sahl_al-Qūhī birthYear "0940".
- Abū_Sahl_al-Qūhī deathDate "1000".
- Abū_Sahl_al-Qūhī deathYear "1000".
- Abū_Sahl_al-Qūhī thumbnail Gravure_originale_du_compas_parfait_par_Abū_Sahl_al-Qūhī.jpg?width=300.
- Abū_Sahl_al-Qūhī wikiPageExternalLink Kuhi_BEA.htm.
- Abū_Sahl_al-Qūhī wikiPageExternalLink 1G2-2830903554.html.
- Abū_Sahl_al-Qūhī wikiPageExternalLink Kuhi_BEA.pdf.
- Abū_Sahl_al-Qūhī wikiPageExternalLink sici?sici=0021-1753%28199803%2989%3A1%3C112%3AFR%3E2.0.CO%3B2-C.
- Abū_Sahl_al-Qūhī wikiPageExternalLink sici?sici=0041-977X%281998%2961%3A2%3C406%3ALMIDIA%3E2.0.CO%3B2-K.
- Abū_Sahl_al-Qūhī wikiPageID "1766764".
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- Abū_Sahl_al-Qūhī wikiPageOutDegree "40".
- Abū_Sahl_al-Qūhī wikiPageRevisionID "679419392".
- Abū_Sahl_al-Qūhī wikiPageWikiLink Amol.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Apollonius_of_Perga.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Archimedes.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Aristotle.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Astrolabe.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Astronomy_in_the_medieval_Islamic_world.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Baghdad.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Buwayhid.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Buyid_dynasty.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Category:1000_deaths.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Category:10th-century_Iranian_people.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Category:10th-century_astronomers.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Category:10th-century_mathematicians.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Category:940_births.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Category:Astronomers_of_medieval_Islam.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Category:Buyid_scholars.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Category:Iranian_scientists.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Category:Iraqi_scientists.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Category:Mathematicians_of_medieval_Islam.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Category:Medieval_Iraqi_astronomers.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Category:Medieval_Iraqi_mathematicians.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Category:Medieval_Persian_astronomers.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Category:Medieval_Persian_mathematicians.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Category:People_from_Amol.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Circle.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Conic_section.
- Abū_Sahl_al-Qūhī wikiPageWikiLink David_Pingree.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Dictionary_of_Scientific_Biography.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Ellipse.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Equation.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Hyperbola.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Islamic_astronomy.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Islamic_mathematics.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Islamic_science.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Line_(geometry).
- Abū_Sahl_al-Qūhī wikiPageWikiLink Mathematics_in_medieval_Islam.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Parabola.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Persian_people.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Quadratic_equation.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Science_in_the_medieval_Islamic_world.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Sharaf_al-Dawla.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Straight_line.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Tabaristan.
- Abū_Sahl_al-Qūhī wikiPageWikiLink Weight.
- Abū_Sahl_al-Qūhī wikiPageWikiLink File:Gravure_originale_du_compas_parfait_par_Abū_Sahl_al-Qūhī.jpg.
- Abū_Sahl_al-Qūhī wikiPageWikiLinkText "Abu Sahl al-Quhi".
- Abū_Sahl_al-Qūhī wikiPageWikiLinkText "Abu-Sahl Quhi".
- Abū_Sahl_al-Qūhī wikiPageWikiLinkText "Abū Sahl al-Qūhī".
- Abū_Sahl_al-Qūhī wikiPageWikiLinkText "Bijan Ibn Rostam Kouhi".
- Abū_Sahl_al-Qūhī wikiPageWikiLinkText "al-Qūhī, Abū Sahl".
- Abū_Sahl_al-Qūhī dateOfBirth "940".
- Abū_Sahl_al-Qūhī dateOfDeath "1000".
- Abū_Sahl_al-Qūhī hasPhotoCollection Abū_Sahl_al-Qūhī.
- Abū_Sahl_al-Qūhī id "Al-Quhi".
- Abū_Sahl_al-Qūhī name "Quhi, Abu Sahl".
- Abū_Sahl_al-Qūhī shortDescription "Medieval Persian mathematician-astronomer".
- Abū_Sahl_al-Qūhī title "Abu Sahl Waijan ibn Rustam al-Quhi".
- Abū_Sahl_al-Qūhī wikiPageUsesTemplate Template:Authority_control.
- Abū_Sahl_al-Qūhī wikiPageUsesTemplate Template:Cite_book.
- Abū_Sahl_al-Qūhī wikiPageUsesTemplate Template:Cite_encyclopedia.
- Abū_Sahl_al-Qūhī wikiPageUsesTemplate Template:Islamic_mathematics.
- Abū_Sahl_al-Qūhī wikiPageUsesTemplate Template:Lang-fa.
- Abū_Sahl_al-Qūhī wikiPageUsesTemplate Template:MacTutor.
- Abū_Sahl_al-Qūhī wikiPageUsesTemplate Template:Persondata.
- Abū_Sahl_al-Qūhī wikiPageUsesTemplate Template:Reflist.
- Abū_Sahl_al-Qūhī wikiPageUsesTemplate Template:Transl.
- Abū_Sahl_al-Qūhī description "Medieval Persian mathematician-astronomer".
- Abū_Sahl_al-Qūhī description "Medieval Persian mathematician-astronomer".
- Abū_Sahl_al-Qūhī subject Category:1000_deaths.
- Abū_Sahl_al-Qūhī subject Category:10th-century_Iranian_people.
- Abū_Sahl_al-Qūhī subject Category:10th-century_astronomers.
- Abū_Sahl_al-Qūhī subject Category:10th-century_mathematicians.
- Abū_Sahl_al-Qūhī subject Category:940_births.
- Abū_Sahl_al-Qūhī subject Category:Astronomers_of_medieval_Islam.
- Abū_Sahl_al-Qūhī subject Category:Buyid_scholars.
- Abū_Sahl_al-Qūhī subject Category:Iranian_scientists.
- Abū_Sahl_al-Qūhī subject Category:Iraqi_scientists.
- Abū_Sahl_al-Qūhī subject Category:Mathematicians_of_medieval_Islam.
- Abū_Sahl_al-Qūhī subject Category:Medieval_Iraqi_astronomers.
- Abū_Sahl_al-Qūhī subject Category:Medieval_Iraqi_mathematicians.
- Abū_Sahl_al-Qūhī subject Category:Medieval_Persian_astronomers.
- Abū_Sahl_al-Qūhī subject Category:Medieval_Persian_mathematicians.
- Abū_Sahl_al-Qūhī subject Category:People_from_Amol.
- Abū_Sahl_al-Qūhī type Agent.
- Abū_Sahl_al-Qūhī type Person.