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Combining clay with minerals, quartz, and feldspar will make porcelain.
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Papermaking became an important industry in China.
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In about the 7th century, the Chinese invented a technique called woodblock printing.
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The new clock was more accurate than earlier timekeeping devices, such as sundials and hourglasses.
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The Chinese who first made gunpowder were alchemists, people who practiced a blend of science and magic known as alchemy.
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Early flamethrowers contained gunpowder mixed with oil. The Chinese used them to spray enemies with a stream of fire.
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Paper money was invented by the Chinese in the late 8th or early 9th century.
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Printers used woodblock printing to make the cards from thick paper.
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Artillery shells, for example, exploded after being hurled at enemies by a war machine called a catapult.
