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An introduction to astronomy (1916)

Moulton, Forest Ray, 1872-1952 · New York, The Macmillan company · leaf 83

An illustration from An introduction to astronomy, 1916, leaf 83
as it goes, of the reason that the moon and sunraise tides in the earth, reserving for Arts. 263, 264 a more 54 AN INTRODUCTION TO ASTRONOMY [ch. ii, 25 complete treatment of the question. In Fig; 17 let E rep-resent the center of the earth, the arrow the direction towardthe moon, and A and B the… … Fig. 17. — The tidal bulges at A and B on the earth produced bythe moon. a unit mass at A is greater than it is for a unit mass at E,and greater for a unit mass at E than it is for one at B.Since the distance from the earth to the moon is 240,000miles, the distance of the moon from A is fifty-nine…

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