The world machine. The first phase: the cosmic mechanism (1907)
Snyder, Carl, 1869-1946 · London, New York [etc.] Longmans, Green, and co. · leaf 108
one, unaided by church or prince or state. DISTANCE AND GRANDEUR OF THE SUN 87 Moreover, it was difficult then to get a long base for observa-tions, such as their crude measures of angles required. So,beginning with the moon, they resorted to the ingenious planof taking its parallax when it lay in… … Fig, 7- It is clear that if a second point on the earth, as D, can befound where the moon is at the same moment directly on themeridian, then a hne from the moon through this point willequally pass through the earths centre. As a matter of fact,it would be rather painful work to locate this point,…
Cosmology · Celestial mechanics · Science
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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-353-245.webp)