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What rotating aircraft device did Leonardo da Vinci sketch as a possible precursor to the helicopter?
Answer
Aerial screw
What type of aircraft did Leonardo da Vinci design with wings modeled on a bird’s anatomy?
Answer
Ornithopter
What musical instrument did Leonardo da Vinci design with rotating cylinders and vibrating strings?
Answer
Viola organista
What armored military vehicle did Leonardo da Vinci sketch with sloped protective plates and several cannons?
Answer
Tank
What device did Leonardo da Vinci design with a pyramid-shaped linen canopy, often called an early parachute?
Answer
Parachute
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Latest trivia questions
What type of vehicle did Leonardo da Vinci sketch with a conical gear system and three wheels?
Answer
Self-propelled cart
Which stock-market crash describes the global equity decline during the 1973–1974 bear market?
Answer
1973–1974 stock market crash
Which U.S. financial panic began in 1893 after railroad failures and a run on banks?
Answer
Panic of 1893
Which 1997 crisis began when Thailand abandoned its fixed exchange-rate peg to the U.S. dollar?
Answer
Asian financial crisis