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Hellenistic technology has always fascinated me, especially the work attributed to mathematician, engineer, and inventor Hero (or “Heron”) of Alexandria, one of the world’s first steampunks. Much of the documentation of his work (and likely those of many others of his time) come to us by way of The Pneumatics of Hero of Alexandria (or Pneumatica). This work, translated from the original Greek, has been online for years and I’ve poked through it on many occasions. So, I really enjoyed reading this article about the text and Hero by physicist Amelia Carolina Sparavigna of Politecnico di Torino in Italy. [Via arXiv]

Hero, the Michanikos, is celebrated for his activity as an engineer: in his books, he describes several machines and automata working under the action of water and steam by means of an excellent use of siphons and valves. It is noticeable that many of the devices he is describing are incorporating some sorts of feedback control systems. The University of Rochester publishes one of his books, “Pneumatica”, in its web library on Steam Engines. The book contains the detailed descriptions of machines, descriptions translated from the Greek original, illustrated by drawings that, according to Bennet Woodcroft, Editor of this English translation of 1851, have been made expressly for the English edition from the best examples from previous editions.

Water, air and fire at work in Hero’s machines [link to PDF download page]

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Gareth Branwyn

Gareth Branwyn is a freelancer writer and the former Editorial Director of Maker Media. He is the author or editor of a dozen books on technology, DIY, and geek culture, including the first book about the web (Mosaic Quick Tour) and the Absolute Beginner’s Guide to Building Robots. He is currently working on a best-of collection of his writing, called Borg Like Me.


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