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What canal machine did Leonardo da Vinci design to remove mud from waterways?
Answer
Dredger
What road-measuring device did Leonardo da Vinci design with a wheel and a counter?
Answer
Odometer
What kind of lock did Leonardo da Vinci design for canals?
Answer
Miter gate lock
What bowed-keyboard instrument did Leonardo da Vinci design to let one performer sustain many notes?
Answer
Viola organista
What armored war machine did Leonardo da Vinci design with a conical shell and several cannons?
Answer
Armored tank
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What kind of lock did Leonardo da Vinci design for canals?
Answer
Miter gate lock
What musical instrument did Leonardo da Vinci design using a keyboard and a bow-like wheel?
Answer
Viola organista
What rotating firearm did Leonardo da Vinci sketch with multiple barrels arranged in rows?
Answer
33-barrel organ
What self-propelled vehicle did Leonardo da Vinci design using springs and geared wheels?
Answer
Self-propelled cart