Sark, Samuel M. [from old catalog] · Circleville, Ohio, The author · leaf 48
; the second its annual or yearlymotion. 2. Cause of the Earths Revolution—When theEarth was separated from the Nebulous Sun, it received aprojectile force which has ever since been the cause of itsmotion through space. From its inertia alone, it must con-tinue moving forever. This motion, however,… … Fig. 7. In fig. 7, S represents the Sun ; E the Earth. From itsinertia, the Earth would move for an indefinite time in thedirection E F, but the Suns attraction constantly act-ing upon the Earth at right angles to its orbit causes ourplanet to change its direction at every point, by falling to-ward…
Astronomy, Juvenile and popular
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
