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Jacob ben Machir ibn Tibbon ((ヘブライ語:יעקב בן מכיר ׳ן תיבון)), of the Ibn Tibbon family, also known as Prophatius. Provençal, Jewish astronomer; born, probably at Marseilles, about 1236; died at Montpellier about 1304. He was a grandson of Samuel ben Judah ibn Tibbon. His Provençal name was Don Profiat Tibbon; the Latin writers called him Profatius Judæus. Jacob occupies a considerable place in the history of astronomy in the Middle Ages. His works, translated into Latin, were quoted by Copernicus, Reinhold, and Clavius. He was also highly reputed as a physician, and, according to Jean Astruc ("Mémoires pour Servir à l'Histoire de la Faculté de Médecine de Montpellier," p. 168), was regent of the faculty of medicine of Montpellier. In the controversy between the Maimonists and the anti-Maimonists Jacob defended science against the attacks of Abba Mari and his party; the energetic attitude of the community of Montpellier on that occasion was due to his influence. Jacob became known by a series of Hebrew translations of Arabic scientific and philosophical works, and above all by two original works on astronomy. His translations are: # the ''Elements'' of Euclid, divided into fifteen chapters; # the treatise of Qusta ibn Luqa on the armillary sphere, in sixty-five chapters; # ''Sefer ha-Mattanot,'' the ''Data'' of Euclid; # a treatise of Autolycus on the sphere in movement; # three treatises on the sphere of Menelaus of Alexandria; # ''Ma'amar bi-Tekunah,'' or ''Sefer 'al Tekunah,'' in forty-four chapters; # a treatise on the use of the astrolabe # compendium of the ''Almagest'' of Ptolemy # ''Iggeret ha-Ma'aseh be-Luaḥ ha-Niḳra Sofiḥah,'' # preface to Abraham bar Ḥiyya's astronomical work; # an extract from the ''Almagest'' on the arc of a circle; # "Ḳiẓẓur mi-Kol Meleket Higgayon," Averroes' compendium of the ''Organon'' (Riva di Trento, 1559); # Averroes' paraphrase of books xi–xix of Aristotle's history of animals; # ''Mozene ha-'Iyyunim,'' from Ghazali. The two original works of Jacob are: (1) a description of the astronomical instrument called the quadrant (Bibliothèque Nationale, Paris, MS. No. 1054), in sixteen chapters, the last of which shows how to construct this instrument. This was translated several times into Latin; (2) astronomical tables, beginning with 1 March 1300 (Munich MS. No. 343, 26). These tables were translated into Latin and enjoyed great repute. ==See also== * Hachmei Provence * Ibn Tibbon, a family list * Jacob's staff 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Jacob ben Machir ibn Tibbon」の詳細全文を読む スポンサード リンク
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