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Cleomedes' Lectures on AstronomyA Translation of  The Heavens$
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Cleomedes and Lawrence Witmer

Print publication date: 2004

Print ISBN-13: 9780520233256

Published to California Scholarship Online: March 2012

DOI: 10.1525/california/9780520233256.001.0001

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Chapter One1

Chapter One1

(p.21) Chapter One1
Cleomedes' Lectures on Astronomy

Alan C. Bowen

Robert B. Todd

University of California Press

This chapter illustrates that the cosmos is a finite and stable structure surrounded by an infinite void. It also demonstrates that the Earth and the heavens are homocentric spherical bodies with corresponding zones of latitude. A cosmos is a construct formed from the heavens, the Earth, and the natural substances within them. If the extracosmic void is limited, and at all events enclosed by something, yet not enclosed by body, it will be enclosed by something incorporeal. The cosmos itself, being a body, necessarily has both an upwards and downwards [direction], as well as the remaining directions. The theory of Nature states that circumhabitants, antipodes, and contrahabitants must exist, since none of these [groups] are described by direct reports.

Keywords:   cosmos, infinite void, Earth, heavens, extracosmic void, Nature

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