History of Astronomy |
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Page 36
... proved that it had no measurable parallax . Later he employed the same method with the comets of 1577 , 1580 , 1582 , 1585 , 1590 , 1593 , and 1596 , and proved that they too had no measurable parallax and must be very distant . The ...
... proved that it had no measurable parallax . Later he employed the same method with the comets of 1577 , 1580 , 1582 , 1585 , 1590 , 1593 , and 1596 , and proved that they too had no measurable parallax and must be very distant . The ...
Page 40
... proved it to himself by trying every possible variation of the elements and finding them fail . The number of hypotheses which he examined and rejected was almost incredible ( for example , that the planets turn round centres at a ...
... proved it to himself by trying every possible variation of the elements and finding them fail . The number of hypotheses which he examined and rejected was almost incredible ( for example , that the planets turn round centres at a ...
Page 42
... prove ) states that a line drawn from a planet to the sun sweeps over equal areas in equal times . These two laws were published in his great work , Astronomia Nova , seu Physica Cœlestis tradita commentariis de Motibus Stellæ Martis ...
... prove ) states that a line drawn from a planet to the sun sweeps over equal areas in equal times . These two laws were published in his great work , Astronomia Nova , seu Physica Cœlestis tradita commentariis de Motibus Stellæ Martis ...
Page 46
... 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 the principle of isochronism 46 THE DYNAMICAL PERIOD GALILEO AND THE TElescope-NOTIONS OF GRAVITY BY ...
... 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 the principle of isochronism 46 THE DYNAMICAL PERIOD GALILEO AND THE TElescope-NOTIONS OF GRAVITY BY ...
Page 48
... proved the truth of the Copernican theory of the Earth's motion ; and he urged this view on friends and foes alike . Although in frequent correspondence with Kepler , he never alluded to the New Astronomy , and wrote to him extolling ...
... proved the truth of the Copernican theory of the Earth's motion ; and he urged this view on friends and foes alike . Although in frequent correspondence with Kepler , he never alluded to the New Astronomy , and wrote to him extolling ...
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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