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Hard Leonardo Da Vinci's Inventions

What military machine did Leonardo da Vinci propose for launching several stones at once with a large tensioned frame?

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Intermediate Leonardo Da Vinci's Inventions

What underwater breathing apparatus did Leonardo da Vinci design with two breathing tubes connected to a mask?

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Intermediate Leonardo Da Vinci's Inventions

What rotating machine did Leonardo da Vinci propose for spinning and twisting fibers?

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Intermediate Leonardo Da Vinci's Inventions

What type of cannon did Leonardo da Vinci design with multiple barrels mounted on a rotating platform?

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Easy Leonardo Da Vinci's Inventions

What optical device did Leonardo da Vinci study that projects an outside scene onto a dark chamber?

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