Great Astronomers: Unabridged

Robert Stawell Ball

dic 2017 · Audioliterature · Narrado por Ella Porter

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The positions of the stars indicated the time to plough, and the time to sow. To the mariner who was seeking a way across the trackless ocean, the heavenly bodies offered the only reliable marks by which his path could be guided. There was, accordingly, a stimulus both from intellectual curiosity and from practical necessity to follow the movements of the stars. In the ensuing chapters we have endeavoured to sketch the lives and the work of the great philosophers, by whose labours the science of astronomy has been created. We shall commence with Ptolemy, who, after the foundations of the science had been laid by Hipparchus, gave to astronomy the form in which it was taught throughout the Middle Ages. We shall next see Copernicus. We then pass to the genius of Galileo and Newton, and afterwards we shall trace the careers of other more recent discoverers.