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Hipparchus   Listen
Hipparchus

noun
1.
Greek astronomer and mathematician who discovered the precession of the equinoxes and made the first known star chart and is said to have invented trigonometry (second century BC).






WordNet 3.0 © 2010 Princeton University








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"Hipparchus" Quotes from Famous Books



... who explained the motion of the earth; Eratosthenes (270-196 B.C.), who measured the size of the earth; Archimedes (270?-212 B.C.), a pupil of Euclid's, who applied science in many ways and laid the foundations of dynamics; Hipparchus (160-125 B.C.), the father of astronomy, who studied the heavens and catalogued the stars, were among the more famous Greeks who studied and taught there in the days when Alexandria had succeeded Athens as the intellectual capital of the Greek world. Some remarkable advances also were made ...
— THE HISTORY OF EDUCATION • ELLWOOD P. CUBBERLEY

... phases. Cleomenus taught that she shone by reflected light. Berose the Chaldean discovered that the duration of her movement of rotation was equal to that of her movement of revolution, and he thus explained why the moon always presented the same side. Lastly, Hipparchus, 200 years before the Christian era, discovered some inequalities in the apparent movements of ...
— The Moon-Voyage • Jules Verne

... phases, and indeed all the successive steps taken, involved this same mental process. But we must content ourselves with referring to the theory of eccentrics and epicycles, as a further marked illustration of it. As first suggested, and as proved by Hipparchus to afford an explanation of the leading irregularities in the celestial motions, this theory involved the perception that the progressions, retrogressions, and variations of velocity seen in the heavenly bodies, might be reconciled ...
— Essays on Education and Kindred Subjects - Everyman's Library • Herbert Spencer

... myrtle I'll wear my glaive, Like Harmodius and Aristogeiton brave, When the twain on Athena's day Did the tyrant Hipparchus slay.[1] ...
— Roads from Rome • Anne C. E. Allinson

... beauty to the state. Some Greek writers also record this. But as for his voyages into Spain, Africa, and the Indies, and his conferences there with the Gymnosophists, the whole relation, as far as I can find, rests on the single credit of the Spartan Aristocrates, the son of Hipparchus. ...
— The Boys' and Girls' Plutarch - Being Parts of The "Lives" of Plutarch • Plutarch

... wherefore fear we death? Did Brutus fear it? or the Grecian friends Who buried in Hipparchus' breast the sword, And died triumphant? Caesar should fear death, ...
— Literary Remains (1) • Coleridge



Words linked to "Hipparchus" :   uranologist, stargazer, mathematician, astronomer



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