Astronomy for the use of schools and academies (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908, Rolfe, W. J. (William James), 1827-1910 · New York : Potter, Ainsworth, & Co. · leaf 68
stancea body near the surface of thetartli would be pulled towardthe earth in the same time : andhe found that these distancesare to each other inversely asthe squares of the distances ofthe two bodies from the centreof the earth. He therefore con-cluded that the moon is drawn to the earth by… … 52 ASTRONOMY. Force varying inversely as the Square of the Distance. — New-ton compared the distance which any body,moving in an ellipse, according to KeplersSecond Law, is drawn towards the sun in thesame time in different parts of its orbit. Hefound these distances in all cases to varyinversely…
Astronomy
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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-391-272.webp)
