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A primary astronomy .. (1851)

Mattison, Hiram, 1811-1868 · New York, Huntington and Savage, Mason and Law · leaf 55

An illustration from A primary astronomy .., 1851, leaf 55
ree with Dr. Webster, that thecommon accentuation is artificial and harsh. The accent on the first andthird syllables, as in Circumpolar, would be natural and easy. 48 PELMAEY ASTRONOMY. 217. What is the Centripetal Force? It is the mutual attraction of the Sun and planets,which prevents them from… … [1. In the cut we have an arc of theEarths orbit. The attraction of the sun,shown by the line A B, is the centripetalforce, while the tendency to follow the lineC D, is the centrifugal force. The twocombining, give the planet what may becalled a resultant motion, in the directionC E; and as it…

Astronomy

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