Planetary Equatorium of Jamshid Ghiyath al-Din al-Kashi PDF Download
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Author:
Publisher: Princeton University Press
ISBN: 1400886309
Category : Science
Languages : en
Pages : 284
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Book Description
Instruments for solving astronomical problems are part of a continuous tradition reaching far back through the Middle Ages into the Hellenistic world. Dr. Kennedy expands the history of analog computers by providing an account of an important development in Central Asia where, in the Samarqand observatory of the Timurid prince Ulugh Beg, an outstanding mathematician of the fifteenth century invented his unique planetary equatorium. With this mechanico-graphical device, Kashi determined solar, lunar, and planetary true longitudes and predicted eclipses, obtaining magnitude, time, and duration. His was the only equatorium with which the determination of planetary latitudes was attempted. In this sense it represents the apex of development reached by this class of instrument. Dr. Kennedy here presents the text of the Persian manuscript describing Kashi's instrument together with an English translation and commentaryÃ? Originally published in 1960. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.
Author:
Publisher: Princeton University Press
ISBN: 1400886309
Category : Science
Languages : en
Pages : 284
Get Book Here
Book Description
Instruments for solving astronomical problems are part of a continuous tradition reaching far back through the Middle Ages into the Hellenistic world. Dr. Kennedy expands the history of analog computers by providing an account of an important development in Central Asia where, in the Samarqand observatory of the Timurid prince Ulugh Beg, an outstanding mathematician of the fifteenth century invented his unique planetary equatorium. With this mechanico-graphical device, Kashi determined solar, lunar, and planetary true longitudes and predicted eclipses, obtaining magnitude, time, and duration. His was the only equatorium with which the determination of planetary latitudes was attempted. In this sense it represents the apex of development reached by this class of instrument. Dr. Kennedy here presents the text of the Persian manuscript describing Kashi's instrument together with an English translation and commentaryÃ? Originally published in 1960. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.
Author: Edward Stewart Kennedy
Publisher:
ISBN:
Category : Astronomical instruments
Languages : un
Pages : 267
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Book Description
Author:
Publisher:
ISBN:
Category : Astronomical instruments
Languages : en
Pages : 296
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Book Description
Author: Muzaffar Iqbal
Publisher: The Other Press
ISBN: 9675062312
Category : Islam and science
Languages : en
Pages : 320
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Book Description
Author: Ǧamšīd Ibn-Masʻūd al- Kāšī
Publisher:
ISBN:
Category :
Languages : en
Pages : 267
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Book Description
Author: Hooman Koliji
Publisher: Routledge
ISBN: 1317117697
Category : Architecture
Languages : en
Pages : 341
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Book Description
Contemporary technical architectural drawings, in establishing a direct relationship between the drawing and its object, tend to privilege the visible physical world at the expense of the invisible intangible ideas and concepts, including that of the designer’s imagination. As a result, drawing may become a utilitarian tool for documentation, devoid of any meaningful value in terms of a kind of knowledge that could potentially link the visible and invisible. This book argues that design drawings should be recognized as intermediaries, mediating between the world of ideas and the world of things, spanning the intangible and tangible. The notion of the 'Imaginal' as an intermediary between the invisible and visible is discussed, showing how architectural drawings lend themselves to this notion by performing as creative agents contributing not only to the physical world but also penetrating the realm of concepts. The book argues that this 'in-between' quality to architectural drawing is essential and that it is critical to perceive drawings as subtle bodies that hold physical attributes (for example, form, proportion, color), highly evocative, yet with no matter. Focusing on Islamic geometric architectural drawings, both historical and contemporary, it draws on key philosophical and conceptual notions of imagination from the Islamic tradition as these relate to the creative act. In doing so, this book not only makes important insights into the design process and act of architectural representation, but more broadly it adds to debates on philosophies of the imagination, linking both Western and Islamic traditions.
Author: David A. King
Publisher: Taylor & Francis
ISBN: 1000585018
Category : History
Languages : en
Pages : 421
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Book Description
This volume of 12 studies, mainly published during the past 15 years, begins with an overview of the Islamic astronomy covering not only sophisticated mathematical astronomy and instrumentation but also simple folk astronomy, and the ways in which astronomy was used in the service of religion. It continues with discussions of the importance of Islamic instruments and scientific manuscript illustrations. Three studies deal with the regional schools that developed in Islamic astronomy, in this case, Egypt and the Maghrib. Another focuses on a curious astrological table for calculating the length of life of any individual. The notion of the world centred on the sacred Kaaba in Mecca inspired both astronomers and proponents of folk astronomy to propose methods for finding the qibla, or sacred direction towards the Kaaba; their activities are surveyed here. The interaction between the mathematical and folk traditions in astronomy is then illustrated by an 11th-century text on the qibla in Transoxania. The last three studies deal with an account of the geodetic measurements sponsored by the Caliph al-Ma'mûn in the 9th century; a world-map in the tradition of the 11th-century polymath al-Bîrûnî, alas corrupted by careless copying; and a table of geographical coordinates from 15th-century Egypt.
Author:
Publisher: BRILL
ISBN: 9004387862
Category : History
Languages : en
Pages : 516
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Book Description
First published as a special issue of the journal Medieval Encounters (vol. 23, 2017), this volume, edited by Josefina Rodríguez-Arribas, Charles Burnett, Silke Ackermann, and Ryan Szpiech, brings together fifteen studies on various aspects of the astrolabe in medieval cultures. The astrolabe, developed in antiquity and elaborated throughout the Middle Ages, was used for calculation, teaching, and observation, and also served astrological and medical purposes. It was the most popular and prestigious of the mathematical instruments, and was found equally among practitioners of various sciences and arts as among princes in royal courts. By considering sources and instruments from Muslim, Christian, and Jewish contexts, this volume provides state-of-the-art research on the history and use of the astrolabe throughout the Middle Ages. Contributors are Silke Ackermann, Emilia Calvo, John Davis, Laura Fernández Fernández, Miquel Forcada, Azucena Hernández, David A. King, Taro Mimura, Günther Oestmann, Josefina Rodríguez-Arribas, Sreeramula Rajeswara Sarma, Petra G. Schmidl, Giorgio Strano, Flora Vafea, and Johannes Thomann.
Author: Willem Gillisz Van Wissekerke
Publisher: BRILL
ISBN: 9004614230
Category : History
Languages : en
Pages : 105
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Book Description
Author: David King
Publisher: BRILL
ISBN: 9004450734
Category : Philosophy
Languages : en
Pages : 670
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Book Description
Two remarkable Iranian world-maps were discovered in 1989 and 1995. Both are made of brass and date from 17th-century Iran. Mecca is at the centre and a highly sophisticated longitude and latitude grid enables the user to determine the direction and distance to Mecca for anywhere in the world between Andalusia and China. Prior to the discovery of these maps it was thought that such cartographic grids were conceived in Europe ca. 1910. This richly-illustrated book presents an overview of the ways in which Muslims over the centuries have determined the sacred direction towards Mecca (qibla) and then describes the two world-maps in detail. The author shows that the geographical data derives from a 15th-century Central Asian source and that the mathematics underlying the grid was developed in 9th-century Baghdad.
