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Geography of Claudius Ptolemy, originally titled Geographia and
written in the second century, is a depiction of the geography of
the Roman Empire at the time. Though inaccurate due to Ptolemy's
varying methods of measurement and use of outdated data, Geography
of Claudius Ptolemy is nonetheless an excellent example of ancient
geographical study and scientific method. This edition contains
more than 40 maps and illustrations, reproduced based on Ptolemy's
original manuscript. It remains a fascinating read for students of
scientific history and Greek influence.CLAUDIUS PTOLEMY (A.D. 90-
A.D. 168) was a poet, mathematician, astronomer, astrologer, and
geographer who wrote in Greek, though he was a Roman citizen. He is
most well-known for three scientific treatises he wrote on
astronomy, astrology, and geography, respectively titled Almagest,
Apotelesmatika, and Geographia. His work influenced early Islamic
and European studies, which in turn influenced much of the modern
world. Ptolemy died in Alexandria as a member of Greek society.
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 accuracy The 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.
One of the most important surviving ancient texts on Astrology. The
Earth stood fixed at the center of the universe, with crystalline
spheres within spheres whirling around it. In balance, the universe
had a vast influence on earthly events, which was the basis for the
belief in Astrology. This explanation stood for nearly a millennium
and a half, bolstered by its acceptance as orthodoxy by the
Catholic Church, until Copernicus and Galileo demolished it and
placed the heliocentric (sun-centered) system in its place.
--Sacred Texts
Geography of Claudius Ptolemy, originally titled Geographia and
written in the second century, is a depiction of the geography of
the Roman Empire at the time. Though inaccurate due to Ptolemy's
varying methods of measurement and use of outdated data, Geography
of Claudius Ptolemy is nonetheless an excellent example of ancient
geographical study and scientific method. This edition contains
more than 40 maps and illustrations, reproduced based on Ptolemy's
original manuscript. It remains a fascinating read for students of
scientific history and Greek influence. CLAUDIUS PTOLEMY (A.D. 90-
A.D. 168) was a poet, mathematician, astronomer, astrologer, and
geographer who wrote in Greek, though he was a Roman citizen. He is
most well-known for three scientific treatises he wrote on
astronomy, astrology, and geography, respectively titled Almagest,
Apotelesmatika, and Geographia. His work influenced early Islamic
and European studies, which in turn influenced much of the modern
world. Ptolemy died in Alexandria as a member of Greek society.
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
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