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The tea leaves are grown on small trees or shrubs. Then, the leaves are soaked in warm water.
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The first printer invented by the Chinese was just characters being stamped onto the desired material. After that, the characters would be pressed onto wood, and the characters would show up on the wood.
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The clock was more accurate than they had made it before with hourglasses. They made a wheel that turned every 24 hours. Dripping water made the wheel turn.
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Paper money was created with a woodblock. A single bill would have many colors.
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The paper made from ancient China was created by hemp or the bark of the Mulberry tree. A little later, the Chinese just used rags.
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Alchemists accidentally invented gunpowder by trying to invent a chemical that helped with immortality. By testing out different chemicals, they found gunpowder.
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Early flamethrowers had gunpowder mixed with oil. The Chinese used them to spray enemies with a stream of fire.
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Inoculating children prevents disease from their lives. It works by exposing the person to a disease-carrying substance.
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The ancient Chinese people invented the rocket. Rockets were powered by a black powder made of saltpeter, charcoal, and sulfur.
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Thick paper and woodblock printing to create game cards. Famous artists drew designs on the back of the cards.