History of Astronomy |
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Page vii
... recognising the different points of view of the different ages , to give due credit even to the ancients . No one can expect , in a history of astronomy of limited size , to find a treatise on 66 practical " or on " theo- retical ...
... recognising the different points of view of the different ages , to give due credit even to the ancients . No one can expect , in a history of astronomy of limited size , to find a treatise on 66 practical " or on " theo- retical ...
Page viii
... recognises more than the mathe- matical astronomer this feebleness of the human intellect , and no one is more conscious of the limitations of the logical process called mathematics , which even now has not solved directly the problem ...
... recognises more than the mathe- matical astronomer this feebleness of the human intellect , and no one is more conscious of the limitations of the logical process called mathematics , which even now has not solved directly the problem ...
Page 11
... recognised that the Babylonians were in no way inferior in the matter of original scientific investigation to other races of the same era . The Chaldæans , being the most ancient Babylonians , held the same station and dignity in the ...
... recognised that the Babylonians were in no way inferior in the matter of original scientific investigation to other races of the same era . The Chaldæans , being the most ancient Babylonians , held the same station and dignity in the ...
Page 34
... recognised the importance of rigidity in the instruments , and , whereas these had generally been made of wood , he designed them in metal . His instru- ments included armillae like those which had been used When the writer visited M. D ...
... recognised the importance of rigidity in the instruments , and , whereas these had generally been made of wood , he designed them in metal . His instru- ments included armillae like those which had been used When the writer visited M. D ...
Page 35
... recognising the fact that the best instrument in the world is not perfect ; and with each of his instruments he set to work to find out the errors of graduation and the errors of mounting , the necessary correction being applied to each ...
... recognising the fact that the best instrument in the world is not perfect ; and with each of his instruments he set to work to find out the errors of graduation and the errors of mounting , the necessary correction being applied to each ...
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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