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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Geminus ： ウィキペディア英語版 Geminus Geminus of Rhodes ((ギリシア語:Γεμῖνος ὁ Ῥόδιος)), was a Greek astronomer and mathematician, who flourished in the 1st century BC. An astronomy work of his, the ''Introduction to the Phenomena'', still survives; it was intended as an introductory astronomy book for students. He also wrote a work on mathematics, of which only fragments quoted by later authors survive. ==Life== Nothing is known about the life of Geminus. It is not even certain that he was born in Rhodes, but references to mountains on Rhodes in his astronomical works suggests that he worked there. His dates are not known with any certainty either. A passage in his works referring to the ''Annus Vagus'' (Wandering Year) of the Egyptian calendar of 120 years before his own time, has been used to imply a date of c. 70 BC for the time of writing,〔Dicks, D., ''Dictionary of Scientific Biography.'' New York. (1970).〕 which would be consistent with the idea that he may have been a pupil of Posidonius, but a date as late as 50 AD has also been suggested.〔Neugebauer, O., ''A History of Ancient Mathematical Astronomy.'' New York. (1975).〕 The crater Geminus on the Moon is named after him. 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「Geminus」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.