Brocklesby, John, 1811-1889. [from old catalog] · New York, Sheldon and company · leaf 156
magnetism of the earth affectedby solar disturbances ? Relate the instance given. What is the subject of ChapterSecond ? What is said respecting the motions of the moon, and her influence upon ourglobe ? What is said in regard to her distance from the earth ? How far is she from theearth ? How is… … MOON S DISTANCE MEASURED. 3.1 We now select a similar triangle ; suppose MVEWto be such a triangle, and that the side WO1 is onemile long, then the trignometrical tables show us thatOlEl must be sixteen thousand Jive hundred and eightymillionths of a mile long{.016580,) and we establish fromthe…
Astronomy
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