Science
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
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Religious Studies, Education, Psychology, History, Literature, Philosophy, Entire Library
...modify the Greek model of Ptolemy. In medicine important contributions were made by Al-Razi (Rhazes, 865 925) and Ibn-Sina (Avicenna, 980 1037), and in alchemy and pharmacology by Jabir (Geber, 9th cent.), whose work was expanded in...