Atmospheric Pressure - Research Article from World of Earth Science

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Atmospheric Pressure

Aristotle, whose teachings sometimes otherwise inhibited the advancement of science, was right on target in his belief that the atmosphere surrounding the Earth had weight. Moreover, Aristotle stated that as air density decreased, it would be possible for an object to move faster. However, he did not believe in the concept of a vacuum because the absence of an atmosphere meant an object could move infinitely fast, and since infinite speed was not possible, a vacuum that allowed infinite speed was not considered possible either. Galileo disputed some of Aristotle's contentions. In 1638, Galileo published a book in which he asserted a vacuum was possible. But Galileo did not hold that air had a weight that could exert a pressure, even though his own experiments showed clearly that air exerted a force on objects. This was perhaps because he discounted everything Aristotle said, even when...

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This section contains 534 words
(approx. 2 pages at 300 words per page)
Buy the Atmospheric Pressure Encyclopedia Article
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Atmospheric Pressure from Gale. ©2005-2006 Thomson Gale, a part of the Thomson Corporation. All rights reserved.
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