History of Astronomy |
From inside the book
Results 1-5 of 12
Page 25
... opposition . For Mars would then be a great deal nearer to the earth than at other times . It would also explain the retrograde motion of planets when in opposition . We must here notice that at this stage Copernicus was actually ...
... opposition . For Mars would then be a great deal nearer to the earth than at other times . It would also explain the retrograde motion of planets when in opposition . We must here notice that at this stage Copernicus was actually ...
Page 33
... opposition of his parents only stimulated him in his efforts to overcome difficulties . He soon grasped the hopelessness of the old deductive methods of reasoning , and decided that no theories ought to be indulged in until preparations ...
... opposition of his parents only stimulated him in his efforts to overcome difficulties . He soon grasped the hopelessness of the old deductive methods of reasoning , and decided that no theories ought to be indulged in until preparations ...
Page 38
... opposition to those of physics , as the heavy and sluggish earth is unfit to move , and the system is even opposed to the authority of Scripture . The absence of annual parallax further involves an incredible distance between the ...
... opposition to those of physics , as the heavy and sluggish earth is unfit to move , and the system is even opposed to the authority of Scripture . The absence of annual parallax further involves an incredible distance between the ...
Page 42
... opposition to Kepler's teaching . All of the best theories were compared by him with observation . These were the Ptolemaic , the Copernican , and the Tychonic . The two latter placed all of the planetary orbits concentric with one ...
... opposition to Kepler's teaching . All of the best theories were compared by him with observation . These were the Ptolemaic , the Copernican , and the Tychonic . The two latter placed all of the planetary orbits concentric with one ...
Page 43
... opposition . The earth's position E at that date gives the longitude of Mars M. His period is 687 days . Now choose dates before and after the principal date at intervals of 687 days and its multiples . Mars is in each case in the same ...
... opposition . The earth's position E at that date gives the longitude of Mars M. His period is 687 days . Now choose dates before and after the principal date at intervals of 687 days and its multiples . Mars is in each case in the same ...
Other editions - View all
Common terms and phrases
accurate observations Airy astro Astronomer Royal Astronomia Nova astronomical units attraction axis bright calculations Cape Cassini catalogue centre century comet compute Copernicus diameter discovered discovery earth eclipse epicycles equatoreal error excentric explain fact fixed stars Galileo Greenwich Halley heavenly bodies heavens heliometer Hipparchus Huggins hydrogen hypothesis instruments Johann Kepler John Herschel Jupiter Jupiter's Kepler Laplace Lick Observatory light line of apses line of sight lunar Mars mathematical mean distance mean motion measured Mercury meteor method miles a second moon moon's nebulæ Newton Observatory orbit parallax perihelion period photographic physical planet planetary pole position predicted proper motion proved Ptolemy R. S. Phil records refractor retrograde retrograde motion revolution revolve round ring rotation round the sun satellites seems showed Sirius solar system spectra spectroscope spectrum spots stellar sun-spots sun's surface supposed tables telescope theory tion Trans Tycho Brahe Uranus velocity Venus Verrier zenith