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 184
ed the tail of the comet. The adjoining diagram is the usual representationof the solar system in piano; but it is not strictlycorrect, as the planets move in elliptical orbits, theplanes of which do not exactly coincide with one an-other. * It is not convenient to divide an abridged system of… … o represents the sun placed in the centre of the sys-tem, m 1 is the orbit of Mercury round the sun, v 2the path of Venus, e 3 the orbit of the earth, m 4 theorbit of Mars, J 5 the course of Jupiter, s 6 that ofSaturn, and g s 7 is the orbit of Herschel. Ml the planets are supposed to have a…
Physics
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![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-35-14.webp)
