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Tea is made by letting tea leaves steep in boiling water was drunk mostly as medicine.
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Yi Di created alcohol thinking it teaches you about history
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Later they learned that blowing air into molten, or melted, cast iron causes a chemical reaction that creates steel. Steel is a great deal stronger than iron.
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Porcelain is made by combining clay with the minerals quartz and feldspar. The mixture is baked in a kiln, or pottery oven, at very high temperatures. The resulting pottery is white, hard, and waterproof. However, light can pass through it, so that despite its sturdiness it looks quite delicate and beautiful.
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Paper making became an important industry in China. For more than 500 years, the Chinese were the only people in the world who knew the secret of making paper.
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To print from the block, the printer covered the characters with black ink. Then he spread paper over the block and smoothed the paper with a brush. Some artists still use block printing today to create fine art prints.
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Printers used woodblock printing to make the cards from thick paper. Famous artists drew the designs that appeared on the backs of the cards.
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Accidentally discovered by alchemists who were looking for secret to eternal life.
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Rockets were used in fireworks and weapons
