[Hellenic Moon]

Ctesibius, a Greek inventor/mathematician living in Alexandria from 285 BC to 222 BC, known as the father of Pneumatics, is credited with a number of inventions, including a water pump, a more precise water clock , bronze spring and pneumatic catapults, several automatic machines, and more. Watch some videos to learn more about him:

Here is a clip about him taken from the documentary- Ancient Miracle Machines:

The clepsydra of Ctesibius:

A brief history of Time:

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