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THE RENAISSANCE

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Author Topic: THE RENAISSANCE  (Read 4177 times)
Bianca
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« Reply #105 on: October 17, 2008, 08:50:22 pm »










It can be said without injustice that while Hipparchus of Rhodes was the first parent of this
discipline, Claudius Ptolemy of Alexandria was its author and chief.

For, before Hipparchus, very few men freely observed the motion of the stars, and no one had
yet thought that the fixed stars revolved with anything other than a simple, diurnal motion, which Hipparchus noticed, concluding [End Page 52] that the said stars move with their own very slow
motion towards the east.

Then Ptolemy, taking up the discoveries of the ancients . . . pronounced that motion to be one
degree in one hundred years, as can be seen in the third theorem of chapter 7 [of the Almagest;
the printed text of the oration actually cites the seventh theorem of chapter 3, which is incorrect
and likely the result of a misreading] . . . many other esteemed Greek professors of that art are being passed over in silence . . . moreover, how much value the Arabs placed on that art is shown by the writings of the most worthy al-Bategni, whom Plato of Tivoli translated into Latin. Likewise, a certain Gerard of Cremona translated Geber of Spain, whom Albertus Magnus did not fear to call the corrector of Ptolemy in the Speculum astronomiae. . . .36 
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Your mind understands what you have been taught; your heart what is true.
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