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The earliest Chinese paper was probably made from hemp and then the bark of the mulberry tree. Later, the Chinese used rags.
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The printer first drew characters (symbols) on paper. He then glued the paper to a wooden block. When the glue was dry, the printer carved out the wood around the characters, leaving the characters raised on the wood.
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The Chinese devised a wheel that made one complete turn every 24 hours. Dripping water made the wheel turn. Every quarter hour, drums would beat; and every hour, a bell would chime. The sounds let people know what time it was.
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For several thousand years, tea—made by letting tea leaves steep in boiling water—was drunk mostly as medicine.Tea houses had sprung up throughout the country.
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Alchemists acidentally created gunpowder by trying to find a substance that might allow people to to live forever. They also were trying create gold with cheaper metal.
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Printer used woodblock printing to make cards from thick paper. Famous artist drew the designs for the cards
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Like game cards, paper money was printed with wood blocks. By 1107, Song printers were using multiple wood blocks to print each bill. A single bill would have many colors. Paper money is the most common form of currency in the world today.
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The Chinese invented flamethrowers using gunpoweder. The early flamethrowers contained gunpowder mixed with oil. The Chinese used them to spray enemies with a stream of fire.
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During the Song dynasty rocket technology was developed in China.They were powered by black powder mode of saltpeter, charcoal, and sulfur. Rockets were used only in fireworks, then the were used in weapons.
