Heron of Alexandria
(flourished c. AD 62, Alexandria, Egypt) Greek mathematician and inventor. He is remembered for his formula for the area of a triangle and for inventing the aeolipile, the first steam engine, which, in his design, was a forerunner of the jet engine. Of his many treatises, one contains a method for approximating the square root of a number. His writings on mechanics include discussions of the five simple machines, mechanical problems of daily life, and the construction of many kinds of engines.
Variants of HERON OF ALEXANDRIA
Heron of Alexandria or Hero of Alexandria
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