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What protective underwater garment did Leonardo da Vinci design with a breathing mask and air tubes?
Answer
Diving suit
What rotary-wing concept did Leonardo da Vinci sketch in 1489, anticipating the helicopter?
Answer
Aerial screw
What canal device did Leonardo da Vinci study that lets boats move between water levels?
Answer
Canal lock
What armored military vehicle did Leonardo da Vinci sketch with cannons arranged around its circular body?
Answer
Armored tank
What device did Leonardo da Vinci sketch with a pyramid-shaped canopy, anticipating the modern parachute?
Answer
Parachute
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What self-moving vehicle did Leonardo da Vinci sketch, often described as an early programmable robot?
Answer
Self-propelled cart