9780714880389 - Divided Circle: A History of Instruments for Astronomy, Navigation and Surveying von Bennett, J. A. (4 Ergebnisse)

Hardcover. Zustand: Very Good. Zustand des Schutzumschlags: Very Good. 1st Edition. Scratch to back of DJ, previous price sticker to inside flap, other VG. Clean pages, tight binding. BP/Mapmaking, chartmaking.

Hardcover. Zustand: Near Fine. Zustand des Schutzumschlags: Near Fine. 1st Edition. First edition 8½ x 11" pp. 224 with 16 colour plates and many b/w illustrations. Near fine in black cloth with gilt lettering to spine. In near fine dust wrapper with a bumped corner.

First Edition: Hardback, black bds., gold titles, 220 x 290 mm., 1.3 kg. (extra postage), 224 pp., with Indexes, illustrated with 16 full-page, full colour plates and 260 illustrations in the text, original photographic dw., VG+/Fine copy.

Zustand: Sehr gut. 224 S : zahlr. Ill., z.T. farb., mit zahlr. teils farbigen Abbildungen / Fotos, Zustand: geringe Gebrauchs- u. Lagerspuren, sehr gutes Exemplar. A Phaidon Christie's collectors monograph. Literaturverz. S. 215 - 217 - with 260 illustrations, including 16 in colour - Astronomers, navigators and surveyors have always had one need in common-to be able to measure accurately angles between distant objects. The instruments they have used to do this, although adapted to different purposes, have all worked by means of a sight moving over a divided circle - a circle or arc carrying a scale of degrees. It is such mathematical instruments, forming a coherent group both scientifically and historically, that are the subject of this book. These instruments were among the finest of their times, setting the highest standards of precision and accuracy. Dr Bennett describes them and their historical development from Antiquity to the twentieth century, and also discusses the scientists and practitioners who designed, made and used them, and the economic and commercial, as well as the scientific, conditions that stimulated their production. A glossary of technical terms, a full bibliography and an index of leading makes are provided. The instruments themselves appeal to collectors, historians and scientists. Beautiful objects in their own right, finely made of brass, mahogany, ivory and silver, they also had important theoretical and practical functions. They include quadrants, sextants, octants, sundials, cross-staffs, ring-dials, marine and surveying compasses, theodolites, clinometers, mining dials, telemeters and many other specialized instruments. K 079 ISBN 0714880388 Sprache: Englisch Gewicht in Gramm: 1935 29 cm, gebundene Ausgabe, Hardcover mit Original-SchutzUmschlag,