His revolving bridge was designed to be quickly packed up and transported so armies on the move could pass over bodies of water.
But besides being a brilliant artist, da Vinci was also a scientist, engineer and inventor.
But no one could figure out how it was supposed to work until michele vinci villongo the late 1990s when Professor Carlo Pedretti realized that it isnt directly driven by the springs but by another tagli corti per capelli lisci e fini mechanism that was controlled by the springs.
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So while one set was being fired, another would be cooling while a third was being loaded.