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What bearing concept did Leonardo da Vinci draw using balls between moving surfaces?
Answer
Ball bearing
What lifting machine did Leonardo da Vinci design with a helical screw mechanism?
Answer
Screw jack
What defensive vehicle did Leonardo da Vinci design with a conical shell and multiple cannons?
Answer
Armored tank
What wheeled invention did Leonardo da Vinci design that is often described as an early programmable vehicle?
Answer
Self-propelled cart
What type of flying machine did Leonardo da Vinci design with spiral blades inspired by a screw?
Answer
Aerial screw
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Latest trivia questions
What artifact is the most frequently featured Piece of Eden in Assassin's Creed?
Answer
Apple of Eden
Which family does Edward Kenway belong to in Assassin's Creed IV: Black Flag?
Answer
The Kenway family
On what date did Japan announce its surrender in V-J Day broadcasts in Japan?
Answer
August 15, 1945
What was the name of J.R.R. Tolkien’s eldest son, who became a Tolkien scholar?
Answer
John Tolkien