Laplace, Pierre Simon, marquis de, 1749-1827, Bowditch, Nathaniel, 1773-1838, Bowditch, N. I. (Nathaniel Ingersoll), 1805-1861 · Boston, Hillard, Gray, Little, and Wilkins · leaf 491
meridian ; IIP the radius of curvature at P ; GE the radius of curvature at E; DD, BE, AA, the radii of curvature corresponding to the infinitely near points D, B, A1. The lines Bb, Del, are drawn perpendicular to P II ; and B U, D d, perpendicular to CE. About C as a centre, with the radius C D,… … HI. v. § 41.] OBSERVED ARCS OF THE MERIDIAN. 467 r = R — a; r = R + a. [2036] Hence we deduce, r> _ r = a + a —(R — R). [2037] The evolute is convex* towards the polar axis, because the radii of curvature and the degrees of the meridian decrease from the pole to the equator ; moreover, the whole…
Celestial mechanics · Tides · Capillarity
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