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What mechanical component did Leonardo da Vinci study and draw in detailed designs for reducing friction?
Answer
The ball bearing
What armored vehicle did Leonardo da Vinci design with a conical cover and gun ports?
Answer
An armored tank
What rotating-aircraft concept did Leonardo da Vinci sketch with a helical sail?
Answer
Aerial screw
What rescue device did Leonardo da Vinci sketch as a pyramid-shaped canopy for falling through the air?
Answer
Parachute
What self-propelled machine did Leonardo da Vinci design around 1478, centuries before motor cars?
Answer
Self-propelled cart
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Latest trivia questions
What armored vehicle did Leonardo da Vinci design with a conical cover and gun ports?
Answer
An armored tank
What rotating-aircraft concept did Leonardo da Vinci sketch with a helical sail?
Answer
Aerial screw
What self-propelled machine did Leonardo da Vinci design around 1478, centuries before motor cars?
Answer
Self-propelled cart
What was the result of the final match of the 2026–27 Premier League opening weekend?
Answer
Fulham 2–3 Chelsea