What was Emperor Hirohito’s surrender broadcast to Japan called?
Answer
Gyokuon-hōsō
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What was Emperor Hirohito’s surrender broadcast to Japan called?
Answer
Gyokuon-hōsō
Which Japanese city was hit by the second atomic bomb in World War II?
Answer
Nagasaki
What was the Allied ultimatum that Japan accepted before surrendering in World War II?
Answer
Potsdam Declaration
What flying-machine concept did Leonardo da Vinci study by copying the flapping motion of a bird’s wings?
Answer
Ornithopter
What machine element did Leonardo da Vinci sketch as a way to reduce friction between moving parts?
Answer
Ball bearing
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What was the Allied ultimatum that Japan accepted before surrendering in World War II?
Answer
Potsdam Declaration
What water-powered machine did Leonardo da Vinci design to raise water?
Answer
Water screw
What mechanical worker did Leonardo da Vinci design that is often called a humanoid robot?
Answer
Mechanical knight