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Page v
... TYCHO BRAHE KEPLER 6. GALILEO AND THE TElescope - NOTIONS OF GRAVITY BY HORROCKS , ETC. 7. SIR ISAAC NEWTON - LAW OF UNIVERSAL GRAVI- TATION 8. NEWTON'S PAGE vii I 7 13 23 333 46 51 SUCCESSORS HALLEY , --- EULER , LA- 60 GRANGE ...
... TYCHO BRAHE KEPLER 6. GALILEO AND THE TElescope - NOTIONS OF GRAVITY BY HORROCKS , ETC. 7. SIR ISAAC NEWTON - LAW OF UNIVERSAL GRAVI- TATION 8. NEWTON'S PAGE vii I 7 13 23 333 46 51 SUCCESSORS HALLEY , --- EULER , LA- 60 GRANGE ...
Page 23
... Tycho Brahe ; and was as true a representation of the relative motions in the solar system as when we suppose the sun to be fixed and the earth to revolve . The cumbrous system advocated by Ptolemy answered its purpose , enabling him to ...
... Tycho Brahe ; and was as true a representation of the relative motions in the solar system as when we suppose the sun to be fixed and the earth to revolve . The cumbrous system advocated by Ptolemy answered its purpose , enabling him to ...
Page 25
... Tycho Brahe , with the earth fixed . But he now recalled and accepted the views of Pythagoras and others , according to which the sun is fixed and the earth revolves ; and it must be noted that , geometri- cally , there is no difference ...
... Tycho Brahe , with the earth fixed . But he now recalled and accepted the views of Pythagoras and others , according to which the sun is fixed and the earth revolves ; and it must be noted that , geometri- cally , there is no difference ...
Page 26
... Tycho Brahe was pleased with this device , and adapted it to his own system . by Copernicus . But attention must , to state the 26 THE GEOMETRICAL PERIOD.
... Tycho Brahe was pleased with this device , and adapted it to his own system . by Copernicus . But attention must , to state the 26 THE GEOMETRICAL PERIOD.
Page 29
... Tycho Brahe ) " proofs of the physical truth of his system Copernicus had given none , and could give none , " any more than Pythagoras or Aristarchus . There was nothing so startlingly simple in his system as to lead the cautious ...
... Tycho Brahe ) " proofs of the physical truth of his system Copernicus had given none , and could give none , " any more than Pythagoras or Aristarchus . There was nothing so startlingly simple in his system as to lead the cautious ...
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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