Popular astronomy : a concise elementary treatise on the sun, planets, satellites and comets (1865)
Mitchel, O. M. (Ormsby MacKnight), 1809-1862 · New York : Oakley & Mason · leaf 203
d on the surface of the earth wherebythe truth or falsehood of his assumed hypothesis mightbe ascertained. In this dilemma he conceived the ideathat the moon might be employed in the experiment, notby arresting her motion and dropping her literally to theearth, but by considering the earths… … MOTION AND GRAVITATION. 185 Let E represent the earths center, M a point of themoons orbit, in which she is at rest with no force what-ever operating on her. Now let an impulse be applied tothe moon, in the direction M M^^^, tangent to the orbit, orperpendicular to the line M E, and with such…
Astronomy
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