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DOUBLE SILING, detail

National Museum of Science and Technology Leonardo Da Vinci

National Museum of Science and Technology Leonardo Da Vinci
Milan, Italy

This double catapult is one of the many drawings by Leonardo which describe and interpret the large medieval war machines. Thanks to the movement of cog-wheels and worms, the ropes are twisted to hold and bring closer the two crossbows. Then the two poles are engaged and the machine is charged with stones. A single mallet knock pushes down the rocker, which unhooks the two cog-wheels from the worms: the ropes instantaneously untwist, hurling the stones in the air.

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National Museum of Science and Technology Leonardo Da Vinci

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