Americana 1920
The Encyclopedia Americana · 1920 edition
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The Encyclopedia Americana · 1920 edition
Encyclopaedia Britannica · 11th edition
ASTRONOMY (from Gr. ao-rpov, a star, and vtfitiv, to classify or arrange). The subject matter of astronomical science, considered in its widest range, comprehends all the matter of the universe which lies outside the limit of the earth's atmosphere. The seemin ...
Vol. 2, pp. 800-818 · ocr-imported-page-aligned... in electrodynamics the position of the Newtonian law of gravitation in physical astronomy. In 1821 Michael Faraday (1791-1867), who was destined later on to do so much for the science of electricity, discovered electromagnetic rotation, having succeeded in cau ...
Vol. 9, pp. 179-192 · ocr-imported-page-alignedThe New Gresham Encyclopedia · Complete edition