Herschel, John F. W. (John Frederick William), Sir, 1792-1871 · London : Longman, Brown, Green, Longmans, and Roberts · leaf 564
528 OUTLINES OF ASTRONOMY to NS; and therefore, when compounded with the direct force of gravity which (neglecting as of no account in this theory … duced , at an extremely small distance below S, because of the excessive minuteness of the disturbing force compared to gravity.* Then if this be done at every point of the quadrant AD, it will be evident that the direction P T of the resultant force will be always that of a tangent to the small…
Astronomy
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