Newcomb, Simon, 1835-1909, Holden, Edward Singleton, 1846-1914, joint author · New York : H. Holt and company · leaf 230
thing to indicate any prob-ability of such a change. The motion of precession is not uniform, but is subject to severalinequalities which are called Nutation. These can best be under-stood in connection with the forces which produce precession. Cause of Precession, etc.—Sir Isaac Newton showed that… … Pig. 69. never change in consequence of the attraction of another body.But the excess of matter around the equatorial regions of the earthis attracted by the sun and moon in such a way as to cause a turn-ing force which tends to change the direction of the axis of rota-tion. To show the mode of…
Astronomy
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