Cooke, Josiah Parsons, 1827-1894 · Boston, Little, Brown and Company · leaf 109
en English miles. The dimensions of the earth areaccurately as follows: * — Volume of the earth, 1,082,842,000,000.000 cubic kilometres.Surface of the earth, 509,961,000.000 square Length of a quadrant, 10,000.857 kilometres.Equatorial radius, 6,377.398 Mean radius (lat. 45°), 6,366.738 Polar… … Fig. 34. Were the earth perfectly spherical, a plumb-line at any pointon its surface would point exactly to its centre, and the centre offigure -would then be also the centre of gravity. The earthbeing spheroidal, the phenomena of gravity upon its surface be-come less simple. The plumb-line does…
Matter · Heat
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