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What Leonardo da Vinci military vehicle had a conical armored body and multiple cannons?
Answer
Armored tank
What Leonardo da Vinci aircraft concept was designed to imitate a bird's flapping wings?
Answer
Ornithopter
What Leonardo da Vinci design used a large helical screw to suggest vertical flight?
Answer
Aerial screw
What Leonardo da Vinci invention was designed as a pyramid-shaped parachute?
Answer
Parachute
Which company became the second U.S. company to exceed a $1 trillion market capitalization, after Apple?
Answer
Amazon
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