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What simple machine did Leonardo da Vinci design with rows of metal balls between rings?
Answer
Ball bearing
What Leonardo da Vinci invention was a spring-powered machine with a humanoid armored body?
Answer
Mechanical knight
What Leonardo da Vinci instrument measured wind direction and strength?
Answer
Anemometer
What Leonardo da Vinci military invention was a covered vehicle with cannon arranged around a circular platform?
Answer
Armored tank
What Leonardo da Vinci invention used a helical screw to raise water?
Answer
Screw pump
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What Leonardo da Vinci invention was a spring-powered machine with a humanoid armored body?
Answer
Mechanical knight
What Leonardo da Vinci instrument measured wind direction and strength?
Answer
Anemometer
What Leonardo da Vinci invention used a helical screw to raise water?
Answer
Screw pump
What Leonardo da Vinci machine is regarded as an early self-propelled cart?
Answer
Leonardo’s self-propelled cart
What Leonardo da Vinci concept is commonly called a helicopter?
Answer
Aerial screw
Which art teacher's ideas about composition strongly influenced Georgia O'Keeffe after 1912?
Answer
Arthur Wesley Dow
What was the title of Georgia O'Keeffe's 1935 painting of a ram's skull above New Mexico hills?
Answer
Ram's Head, White Hollyhock-Hills