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Hero of Alexandria
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Hero (or Heron) of Alexandria (Greek: Ἥρων ὁ Ἀλεξανδρεύς) (c. 10–70 CE) was an ancient Greek mathematician and engineer.^{[1]} He lived and worked in Alexandria when Alexander the Great ruled. He is famous for his numerous contraptions and experiments.
References
 ↑ Boyer (1968 [1991]). "Greek Trigonometry and Mensuration". A History of Mathematics. pp. 171–172. "At least from the days of Alexander the Great to the close of the classical world, there undoubtedly was much intercommunication between Greece and Mesopotamia, and it seems to be clear that the Babylonian arithmetic and algebraic formulas continued to exert considerable influence in the Hellenistic world. This aspect of mathematics, for example, appears so strongly in Heron of Alexandria (fl. ca. A.D. 100) that Heron once was thought to be Egyptian or Phoenician rather than Greek. Now it is thought that Heron portrays a type of mathematics that had long been present in Greece but does not find a representative among the great figures  except perhaps as betrayed by Ptolemy in the Tetrabiblos."

