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Page 38
... Johann Kepler is the name of the man whose place , as is generally agreed , would have been the most difficult to fill among all those who have contributed to 38 THE DYNAMICAL PERIOD.
... Johann Kepler is the name of the man whose place , as is generally agreed , would have been the most difficult to fill among all those who have contributed to 38 THE DYNAMICAL PERIOD.
Page 40
... Johann Kepler opened up a new world of thought and of intellectual delight . While at work on the Rudolphine tables he used the old epicycles and deferents and excentrics , but he could not make theory agree with observation . His ...
... Johann Kepler opened up a new world of thought and of intellectual delight . While at work on the Rudolphine tables he used the old epicycles and deferents and excentrics , but he could not make theory agree with observation . His ...
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accepted accurate ancient appear astronomers attraction bodies bright calculations called catalogue cause centre century Chinese circle comet compared complete Copernicus determined diameter direction discovered discovery distance earth eclipse effect elements enabled epicycles equal error explain fact fixed follow force four Galileo gave give given gravitation heavens held Herschel increased interesting Jupiter Kepler knowledge known later LIBRARIES light lunar Mars mass mathematical mean measured method miles moon moon's motion move Newton noticed object observations Observatory opposition orbit original parallax pass period photographic physical planet planetary pole position predicted progress proper motion proved records researches revolve ring rotation round Royal satellites seems seen showed SIGILLUM solar system spectroscope spectrum stars studied sun's supposed surface tables telescope theory tion trace true Tycho Brahe UNIVERSITY VERITAS