A Catholic soldier who developed his mechanical prowess in the military, Ramelli trained with the Marquis of Marignano before moving to France to fight against the Huguenots. Equally devoted to mathematics and war, Ramelli included in his book what Witold Rybczysnki describes, in his history of screws and screwdrivers, as “a number of siege engines, cunning pontoon bridges that unfold like accordions, scaling machines, and monstrous catapults.” But Ramelli directs the most energy to the peaceful manipulation of water: dozens of devices for raising, diverting, and channeling aquatic bodies.
from Hacker News https://ift.tt/3sElSTI
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