Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Hero (or Heron) of Alexandria . was an ancient Greek mathematician who was a resident of a Roman province (Ptolemaic Egypt); he was also an engineer who was active in his native city of Alexandria. He is considered the greatest experimenter of antiquity and his work is representative of the Hellenistic scientific tradition.Hero published a well recognized description of a steam-powered device called an aeolipile (hence sometimes called a "Hero engine").
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