History of Astronomy |
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Page 1
... daily and annual alternations of light and darkness and of heat and cold , as much as to the irregular changes of weather , attacks of disease , and the fortune of I BOOK THE GEOMETRICAL PERIOD PRIMITIVE ASTRONOMY AND ASTROLOGY.
... daily and annual alternations of light and darkness and of heat and cold , as much as to the irregular changes of weather , attacks of disease , and the fortune of I BOOK THE GEOMETRICAL PERIOD PRIMITIVE ASTRONOMY AND ASTROLOGY.
Page 2
... light and heat , as a cause . This led to a search for other signs in the heavens . If the appearance of a comet was sometimes noted simul- taneously with the death of a great ruler , or an eclipse with a scourge of plague , these might ...
... light and heat , as a cause . This led to a search for other signs in the heavens . If the appearance of a comet was sometimes noted simul- taneously with the death of a great ruler , or an eclipse with a scourge of plague , these might ...
Page 13
... light from the sun , and that this fact explains her phases ; that an eclipse of the moon happens when the earth cuts off the sun's light from her . He supposed the earth to be flat , and to float upon water . He determined the ratio of ...
... light from the sun , and that this fact explains her phases ; that an eclipse of the moon happens when the earth cuts off the sun's light from her . He supposed the earth to be flat , and to float upon water . He determined the ratio of ...
Page 46
... light body and a heavy one fall at the same speed ( except for the resistance of the air ) . Galileo proved this on paper , but to convince the world he had to experiment from the leaning tower of Pisa . At an early age he discovered ...
... light body and a heavy one fall at the same speed ( except for the resistance of the air ) . Galileo proved this on paper , but to convince the world he had to experiment from the leaning tower of Pisa . At an early age he discovered ...
Page 67
... light . There was an exciting hunt , and on December 31st ( the day before its birthday ) De Zach captured the truant , and Piazzi christened it Ceres . The mean distance from the sun was found to be 2.767 , agreeing with the 2.8 given ...
... light . There was an exciting hunt , and on December 31st ( the day before its birthday ) De Zach captured the truant , and Piazzi christened it Ceres . The mean distance from the sun was found to be 2.767 , agreeing with the 2.8 given ...
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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 nebulę 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