Stars and telescopes; a hand-book of popular astronomy founded on the 9th ed. of Lynn's Celestial motions (1901)
Todd, David P. (David Peck), 1855-1939, Lynn, William Thynne, 1835-1911 · Boston, Little, Brown · leaf 32
th, and the planets round theSun. Tychos observations, however, furnished themeans by which, less than 20 years after his death,Kepler deduced the laws of planetary motion. Itwas in 1618 that he discovered his third and last Outline History ii law, which shows the mutual correspondence… … COPERNICUS (1473-1543) Meanwhile Galileo Galilei, equally famous, hadbeen discovering a system of moons revolving roundJupiter as the planets do round the Sun, confirmingby that and by other discoveries the truth of the Coper-nican system, and establishing the laws of motion,without a knowledge of…
Astronomy
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