Some Models from Da Vinci

:نویسندهDiego Lieban

Book cover that they use as inspiration

Book cover that they use as inspiration

Catapult

Catapult

Jack

Jack — This machine is easy to understand for anyone who has tried to change a tire. It is made from a crank, reduction gear and a rod with teeth that move up and down.

Cam Hammer

Cam Hammer

Paddle-Wheeled Boat

Paddle-Wheeled Boat

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