Di Vinci's invention of the catapult was famous because it's mechanics were so far advanced for their time. By Ryder


I liked all of his inventions, they were visionary for his time and people have evolved then continually to be still used today. It is cool to look and play with modern inventions and know that some parts of them originated with Di Vinci. This mechanism was an early version of a crane using a counterweight screw system. By James