Elementary astronomy; a beginner's text-book (1899)
Holden, Edward Singleton, 1846-1914 · New York, H. Holt and company · leaf 225
distant, but it would certainlybe attracted, he said. There were reasons for believing 203 204 ASTRONOMY. that attractions grew less in proportion to the square of thedistance, not in proportion to the simple distance. His reasoning was something like this: We see that thereis a force acting all… … Fig. 131. A stone in a sling is whirled round in the direction of the arrows in thecircle CBA. At A the string breaks and the stone flies away in thetangent AD. It would move away in that direction forever if the Earthdid not attract it downwards. extend ? Why should it not extend to the Moon ? If…
Astronomy
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![An illustration from Mundus subterraneus, in XII libros digestus : qvo divinum subterrestris mundi opificium, mira ergasteriorum naturae in eo distributio, verbo [pantamorphon] Protei regnum, universae denique naturae majestas & divitiae summa rerum varietate exponuntur, abditorum effectuum causae acri indagine inquistae demonstrantur, cognitae per artis & naturae conjugium ad humanae vitae necessarium usum vario experimentorum apparata, necnon novo modo & ratione applicantur. Ad Alexandrum VII. pont. opt. max. (1678)](https://img.insideoutlibrary.com/img/200/ia-mundussubterrane02kirc-33-34.webp)
