July 2016
Intermediate to advanced
144 pages
2h 45m
English
Ancient Alexandria was hotbed of scientific discovery. Euclid, the father of geometry, lived there, as did Eratosthenes, the mathematician who first measured the circumference of the earth. In Chapter 3, we met Ctesibius when we explored his siphons, and now we’ll explore the work of Heron, perhaps Alexandria’s earliest, if not its greatest, mechanical engineer.
Prior to the 5th or 6th century BCE, the only ways to raise a heavy object were to either climb up on a ladder, put a rope over the object to be lifted, and pull, or, if you had enough time, build a ...
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