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Tea was made by letting tea leaves steep boiling water was drunk mostly as medicine. Later in the years, tea had became has become a huge beverage throughout Chins.
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Chinese steel was very useful. Steel is made from iron but it is less brittle than iron and easier to bend into different shapes.
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Chinese invented the art of paper making. Paper making became a important industry in China. The paper was made out of hemp and then the bark of the mulberry tree.
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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 new clock was more accurate than earlier timekeeping devices, such as sundials and hourglasses. 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.
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Game cards were invented in China in about the 9th century. Printers used woodblock printing to make the cards from thick paper. Famous artists drew the designs that appeared on the backs of the cards. Today, card games are played throughout the world.
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By the 10th century, the Chinese had made the first weapon that used gunpowder: the flamethrower. Early flamethrowers contained gunpowder mixed with oil. The Chinese used them to spray enemies with a stream of fire.
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Rocket technology was developed in song dynasty. Rocket was powered by black powder made of saltpeter, charcoal, and sulfur.
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Chinese alchemists accidentally discovered when they were using saltpeter to try and find secret to immortalitiy.
