Studies in Medieval Astronomy and Optics  book cover
1st Edition

Studies in Medieval Astronomy and Optics



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ISBN 9780860789963
Published October 28, 2006 by Routledge
352 Pages

USD $195.00

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Book Description

In this selection of studies, J.L. Mancha explores aspects of the development of medieval optics and astronomy, including some medieval antecedents of the work of early modern astronomers. The articles deal with Latin, Hebrew and Arabic texts, and the process of translation and transmission of knowledge, and focus on three main themes. First, the theory and astronomical use of the pinhole camera in the 12th and 13th centuries; the texts edited here contain a solution to the problem of the formation of images cast by light through triangular apertures, equivalent to Kepler's, a description of the correct procedure for measuring solar apparent diameters using finite apertures, and a derivation of the Sun's eccentricity from its apparent diameters at apogee and perigee. Second, the characteristics of the Latin and Provençal versions of Levi ben Gerson's astronomical work, composed in collaboration with the author, as well as his tables and canons for finding syzygies and the mathematical methods used in the derivation of parameters. Third, different aspects of the survival of homocentric astronomy in the Middle Ages, especially al-Bitruji's model for trepidation and the technique for calculating the hippopede resulting from Eudoxan couples.

Table of Contents

Contents: Preface. Astronomy and Optics: Egidius of Baisiu's theory of pinhole images; Astronomical use of pinhole images in William of Saint-Cloud's Almanach planetarum (1292). The astronomy of Levi Ben Gerson: The Latin translation of Levi ben Gerson's astronomy; Levi ben Gerson's astronomical work: chronology and Christian context; Heuristic reasoning: approximation procedures in Levi ben Gerson's astronomy; The Provençal version of Levi ben Gerson's table for eclipses; Right ascensions and hippopedes: homocentric models in Levi ben Gerson's astronomy, I: first anomaly. Arabic Astronomy in Western Texts: Ibn al-Haytham's homocentric epicycles in Latin astronomical texts of the 14th and 15th centuries; On Ibn al-Kammad's table for trepidation; A note on Copernicus' 'correction' of Ptolemy's mean synodic month; Al-Bitruji's theory of the motions of the fixed stars. Addenda et corrigenda; Index.

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Author(s)

Biography

Professor J.L. Mancha directs a research unit in the History and Philosophy of the Physical and Mathematical Sciences at the University of Seville, Spain.

Reviews

’... a welcome addition to the Variorum series and a most useful work for historians of medieval science.’ Aestimatio ’This book offers a splendid collection of articles on the transmission of Mediaeval science. It explores in depth the interesting subject of the exchange of knowledge between the Arab culture and Mediaeval Europe via Jewish intermediaries.’ Metascience ’Les services que rendent les éditions Ashgate à travers leur collection Variorum n'ont plus besoin d'être soulignés, et le volume qui réunit les articles de J.L. Mancha en fournit une nouvelle preuve: trouver regroupés sous un format commode et maniable les articles qu'un même auteur a consacrés à des questions voisines représente pour les amateurs une merveilleuse opportunité, d'autant que cet auteur a été prié de conforter l'unité thématique de son volume en le dotant d'un bref avant-propos de présentation et d'un index collectif.’ Archives Internationales d'Histoire des Sciences