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Which continent is also the world's largest desert, according to the usual geographic definition?
Answer
Antarctica
Who completed the first circumnavigation of Earth after Ferdinand Magellan died during the voyage?
Answer
Juan Sebastián Elcano
What Leonardo da Vinci invention is often considered an early automobile?
Answer
Self-propelled cart
Which Leonardo da Vinci device was designed to measure humidity in the air?
Answer
Hygrometer
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Who completed the first circumnavigation of Earth after Ferdinand Magellan died during the voyage?
Answer
Juan Sebastián Elcano
In what year did the Suez Canal officially open?
Answer
1869
What Leonardo da Vinci invention is often considered an early automobile?
Answer
Self-propelled cart
What was Leonardo da Vinci’s 33-barrel weapon commonly called?
Answer
Organ gun
What Leonardo da Vinci mechanism used a screw to raise water from a lower level?
Answer
Archimedes’ screw
What underwater breathing device did Leonardo da Vinci design with a mask, tubes, and a chest bag?
Answer
Leonardo’s diving suit