Berry, Arthur,b. 1862 · London, J. Murray · leaf 291
234 A Short History of Astronomy [Ch. IX. pole b from the centre of the earth o, then the actualsurface of the earth extends at the equator beyond thiscircle as far as a, where, according to Newton, a a is about2^ of o B or o a, and according to modern estimates, basedon actual measurement of the… … The spheroidal form of the earth. the length a a is made, for the sake of distinctness, nearly30 times as great as it should be. Newton discovered also in a similar way the flatteningof Jupiter, which, owing to its more rapid rotation, isconsiderably more flattened than the earth ; this was…
Astronomy
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