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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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PRINTED FROM CALIFORNIA SCHOLARSHIP ONLINE (www.california.universitypressscholarship.com). (c) Copyright University of California Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in CALSO for personal use.date: 24 July 2021

Chapter Five

Chapter Five

Chapter:
(p.64) Chapter Five
Source:
Cleomedes' Lectures on Astronomy
Author(s):

Alan C. Bowen

Robert B. Todd

Publisher:
University of California Press
DOI:10.1525/california/9780520233256.003.0006

This chapter illustrates that the shape of the Earth is spherical. It also demonstrates that both the whole cosmos, and its most significant parts, do have the Earth's shape. It then shows that the the Earth is neither flat, nor concave, nor square, nor pyramidal. It reports that it is absolutely necessary that the Earth be spherical. It is necessary that the air enclosing the Earth also be a sphere, since exhalations from the whole of the Earth rise and flow together and thus fashion the same shape for the air too. The cosmos is the most complete of all bodies, while the sphere is the most complete of all shapes.

Keywords:   shape, Earth, spherical, cosmos, air

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