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What armored vehicle did Leonardo da Vinci design for soldiers to attack from behind protective plates?
Answer
Fighting vehicle
What friction-reducing component did Leonardo da Vinci study in an early machine design?
Answer
Ball bearing
What device did Leonardo da Vinci design to help a diver breathe underwater?
Answer
Diving suit
What portable structure did Leonardo da Vinci design to span a gap without permanent supports?
Answer
Self-supporting bridge
What type of ship did Leonardo da Vinci sketch with two separate hulls?
Answer
Double-hulled ship
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What device did Leonardo da Vinci design to help a diver breathe underwater?
Answer
Diving suit
What portable structure did Leonardo da Vinci design to span a gap without permanent supports?
Answer
Self-supporting bridge
What type of ship did Leonardo da Vinci sketch with two separate hulls?
Answer
Double-hulled ship
What mechanical knight did Leonardo da Vinci design around 1495?
Answer
Robot knight
What type of vehicle did Leonardo da Vinci design to move without a visible horse or person pushing it?
Answer
Self-propelled cart
What device did Leonardo da Vinci design to reproduce human walking using linked mechanical parts?
Answer
Mechanical knight