Newcomb, Simon, 1835-1909, Holden, Edward Singleton, 1846-1914, joint author · New York, H. Holt and Company · leaf 221
slightly bet-ter represented by supposing the earth to be an ellipsoidwith three unequal axes, the equator itself being an ellipseof which the longest diameter was 500 metres, or aboutone third of a mile, longer than the shortest. This resultwas probably due to irregularities of gravity in those… … does not point toward the earths centre. Let Fig. 68represent a meridional section of the earth, N ShQmg theaxis of rotation, E Q the plane of the equator, and 0 theposition of the observer. The hne H R, tangent to the * Captain Clarkes results are given in feet, the polar radius being20,854,895…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
