Philosophical instructor, or, Webster's elements of natural philosophy : subdivided into principles and illustrations ; intended for academies, medical schools, and the popular class-room (1824)
Eaton, Amos, 1776-1842, Webster, John, fl. 1804-1824 · Albany : Printed by Websters and Skinners ... · leaf 207
odicaland synodical months would be the same : but, during this revolution, the earth haspassed on in its orbit to c ; therefore the moon mustadvance to c before the earth and moon can come intoconjunction again ; hut it is obvious by inspection,that when the moon has arrived at f, it will… … PHASES OF THE MOON. Phases of the Moon. 205 The moon is a dark opuke body, moving round theearth in a small orbit, and shines by a borrowed lightfrom the sun, which illuminates one half of its body,and leaves the other in darkness. We perceive dif-ferent degrees of this illumination, according to…
Physics
Internet Archive · Medical Heritage Library · Public Domain Mark 1.0. Free to use for anything.
