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first coin operated machine
First coin operated machine: Hero, also known as Heron, was a Greek mathematician. His birth date is unknown. His birthday is dated early 150 BCE by some authorities in Egypt, Ptolemaic. Others date his birth as 250 CE during the Roman Empire.
Hero was a student and spent most of his time at the University of Alexandria Library. Hero loved the library and its vast collection of books.
Hero of Alexandria was heavily influenced by Ctesibius’ Alexandria writings. Ctesibius could have been his student. He taught math, mechanics, and physical science at Alexandria University when he was older.
Many books were written by him, and they were used as texts by his students and as manuals for technicians. They were written in Greek and Latin, and Egyptian.
His most remarkable invention is “The Philosopher’s Stone of Heron,” which “changes” liquids, such as water, into wine.
It was composed of a watertight vase with a tubular opening at the top that allowed water to enter and reach the bottom, and a winetight vase which had in the middle a tap in an elongated siphon shape.
An intermediate tube connected the two vases. It entered their bottoms and reached almost to their tops. The intermediate tube connected the two vases by allowing water to be poured into one vase. The wine was then emitted from the other vase. (The tube arrangement didn’t allow for mixing liquids.” (‘Heron Pneumatics A 14’).
This Hero is credited for authorship of many manuscripts, including Automata and the Pneumatica as well as the Dioptra, Dioptra, Catoprica, and the Mechanica.
Hero created a variety of amazing machines.
It is believed Hero, standing on the shoulders of giants, studied the works of Archimedes, Vitruvius and Ctesibius.