翻訳と辞書 Words near each other ・ Hypsiboas jimenezi ・ Hypsiboas joaquini ・ Hypsiboas latistriatus ・ Hypsiboas leucocheilus ・ Hypsiboas liliae ・ Hypsiboas nympha ・ Hypsiboas palaestes ・ Hypsiboas phaeopleura ・ Hypsiboas pombali ・ Hypsiboas pulidoi ・ Hypsiboas rhythmicus ・ Hypsiboas riojanus ・ Hypsiboas semilineatus ・ Hypsiboas stenocephalus ・ Hypsicalotes ・ Hypsicles ・ Hypsicratea ・ Hypsicrates ・ Hypsideres curvinucha ・ Hypsideroides junodi ・ Hypsidia ・ Hypsidia australica ・ Hypsidia erythropsalis ・ Hypsidia grisea ・ Hypsidia microspila ・ Hypsidia niphosema ・ Hypsidia robinsoni ・ Hypsidoris ・ Hypsidracon ・ Hypsidracon saurodoxa Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Hypsicles ： ウィキペディア英語版 Hypsicles Hypsicles (; c. 190 – c. 120 BCE) was an ancient Greek mathematician and astronomer known for authoring ''On Ascensions'' (Ἀναφορικός) and the spurious Book XIV of Euclid's ''Elements''. == Life and work == Although little is known about the life of Hypsicles, it is believed that he authored the astronomical work ''On Ascensions'' (Ἀναφορικός and sometimes translated ''On Rising Times''). In this work, Hypsicles proves a number of propositions on arithmetical progressions and uses the results to calculate approximate values for the times required for the signs of the zodiac to rise above the horizon.〔Evans, J., (1998), ''The History and Practice of Ancient Astronomy'', page 90. Oxford University Press.〕 It is thought that this is the work from which the division of the circle into 360 parts may have been adopted〔 since it divides the day into 360 parts, a division possibly suggested by Babylonian astronomy., although this is a mere speculation and no actual evidence is found to support this. Hypsicles is more famously known for possibly writing the apocryphal Book XIV of Euclid's ''Elements''. The spurious Book XIV may have been composed on the basis of a treatise by Apollonius. The book continues Euclid's comparison of regular solids inscribed in spheres, with the chief result being that the ratio of the surfaces of the dodecahedron and icosahedron inscribed in the same sphere is the same as the ratio of their volumes, the ratio being $\backslash sqrt)\}\}$.〔}. It is thought that this book may have been composed by Hypsicles on the basis of a treatise (now lost) by Apollonius comparing the dodecahedron and icosahedron. (Hypsicles, who probably lived in the second half of the second century B.C., is thought to be the author of an astronomical work, ''De ascensionibus'', from which the division of the circle into 360 parts may have been adopted.)}}〕 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「Hypsicles」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.