Bøger af Claudius Ptolemy

OF the means of prediction through astronomy, O Syrus, two ara the most important and valid. One, which is first both in order and in effectiveness, is that whereby we apprehend the aspects of the movements of sun, moon, and stars in relation to each other and to the earth, as they occur from time to time; the second is that in which by means of the natural character of these aspects themselves we investigate the changes which they bring about in that which they surround. The first of these, which has its own science, desirable in itself even though it does not attain the result given by its combination with the second, has been expounded to you as best we could in its own treatise by the method of demonstration. We shall now give an account of the second and less self-sufficient method in a properly philosophical way

The Tetrabiblos, Book One is a beautiful ancient text on Astrology. A highly philosophical look into the chart, how to make an useful prognosis, and why Astrology is important in general. This textbook is perfect for the beginner and advanced student alike.

Ancient India - as Described by Ptolemy - Being a Translation of the Chapters Which Describe India and Central and Eastern Asia in the Treatise or Geography Written by Klaudios Ptolemaios is an unchanged, high-quality reprint of the original edition of 1885.Hansebooks is editor of the literature on different topic areas such as research and science, travel and expeditions, cooking and nutrition, medicine, and other genres. As a publisher we focus on the preservation of historical literature. Many works of historical writers and scientists are available today as antiques only. Hansebooks newly publishes these books and contributes to the preservation of literature which has become rare and historical knowledge for the future.

The Almagest is by far the greatest work in astronomy in ancient times. In a massive series of thirteen books, Ptolemy shows how every detail of the motions of the sun, moon, planets, and stars can be expressed using geometrical models that can be used to compute celestial positions with remarkable accuracyThe present selection covers all the essential features of Ptolemy¿s treatment of the heavens, omitting only more difficult and abstruse matters such as the moon¿s motion and the calculation of eclipses. In the interest of conciseness, development of planetary theories is restricted to two planets, one inferior (Venus) and one superior (Mars). Ptolemy¿s text is accompanied by extensive notes and introductions that are aimed at making the book accessible to students encountering Ptolemy for the first time. This edition is designed to provide everything needed for a one-semester course, or it can be a component of a more general course on planetary theory or history of astronomy.