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What water-management device did Leonardo da Vinci design to control canal water levels?
Answer
Canal lock
What friction-reducing machine part did Leonardo da Vinci sketch using rolling balls?
Answer
Ball bearing
What type of military vehicle did Leonardo da Vinci sketch with sloping armor and multiple guns?
Answer
Armored tank
What keyboard instrument did Leonardo da Vinci design with strings sounded by rotating wheels?
Answer
Viola organista
What type of aircraft did Leonardo da Vinci sketch with birdlike flapping wings?
Answer
Ornithopter
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Latest trivia questions
What type of weapon did Leonardo da Vinci design with many barrels arranged in rows?
Answer
Multi-barreled cannon
What was Leonardo da Vinci’s human-shaped machine commonly called?
Answer
Mechanical knight
What was Leonardo da Vinci’s pyramid-shaped escape device designed to do?
Answer
Slow a person’s fall
What name is commonly given to Leonardo da Vinci’s spiral aircraft design?
Answer
Aerial screw
Which is the smallest country to use the Swiss franc as its official currency?
Answer
Liechtenstein