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Hard Leonardo Da Vinci's Inventions

What textile machine did Leonardo da Vinci design to twist several strands into stronger cord?

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Intermediate Leonardo Da Vinci's Inventions

What rotating-wing aircraft concept did Leonardo da Vinci design with four spiral-shaped wings?

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Easy Leonardo Da Vinci's Inventions

What military vehicle did Leonardo da Vinci design with sloped armor and internal hand-cranked wheels?

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Intermediate Leonardo Da Vinci's Inventions

What flying-machine design did Leonardo da Vinci base on the rotating motion of a screw?

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Intermediate Leonardo Da Vinci's Inventions

What mechanical device did Leonardo da Vinci design to move without an animal pulling it?

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