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 203
terella, representing the earth,be suspended by a string from e, or Libra, where thecircles intersect each other, and the eye be placed alittle above the light in the centre, the hemisphere ofthe globe will be illuminated, including both poles ;the apparent situation of the sun will be in the… … CHANGES OF THE SEASONS. 201 equal all over the earth. Whilst the terrella is movingthrough Libra, Scorpio and Sagittarius, the termina-tor, or edge of the light, keeps increasing beyond theupper or north pole, where it has attained its greatestdistance ; then the globe is in Capricornus g, and…
Physics
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