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What wheeled battlefield machine did Leonardo da Vinci design with blades to cut through enemy troops?
Answer
Scythed chariot
How many barrels did Leonardo da Vinci arrange on the organ-shaped multi-barreled cannon?
Answer
33
What self-moving device did Leonardo da Vinci design that is often called an early robot?
Answer
Self-propelled cart
What rotating device did Leonardo da Vinci draw as a possible vertical-flight machine?
Answer
Aerial screw
What emergency equipment did Leonardo da Vinci sketch as a pyramid-shaped cloth canopy?
Answer
Parachute
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What self-moving device did Leonardo da Vinci design that is often called an early robot?
Answer
Self-propelled cart
How is Taylor Swift’s song “august” stylized in its official title?
Answer
Lowercase
Which 1929 U.S. market day became known as Black Tuesday?
Answer
October 29, 1929
Which 1987 market-crash mechanism used automatic sell orders to hedge portfolios?
Answer
Portfolio insurance
Which stock exchange was at the center of the 1873 financial panic that helped trigger a long depression?
Answer
Vienna Stock Exchange