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The Chinese invented paper in second century B.C. The material they used were most likely bark from mulberry trees. In fact, at the time, the Chinese were the only people who knew how to make paper.
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The Chinese invented a technique called woodblock printing. First, what they did was draw symbols on paper and glued it to the woodblock. Next, when the glue was dry, the printer carved out the wood around the characters.
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Suprisingly, tea making has not changed since early times. Tea farmers grow tea trees/shrubs at hide altitudes (around 4,000 feet) and when they are ready for harvest, the farmers pick the leaves off.
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Different than other clocks, the mechanical clock was more accurate than other time keeping devices (at the time). This wheel made a turn every 24 hours, with dripping water causing it to turn. It even made a sound every quarter hour and hour! This would help the people know what time it is.
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Gunpowder was made by accident when alchemists who were trying to find a cure to live forever.
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In the 8th century, printers used woodblock printing to make the cards from thick paper. Famous artists drew designs that appeared on the back of the cards. Today, game cards are played all around the world.
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Like game cards, paper money was made by woodblock printing. By 1100, song printers used multiple woodblocks to print each bill, so the process would be quicker. If you cannot already tell, today, paper money is the most common form of currency in the world.
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The Chinese created large bombs that were very similar to modern bombs we use today Around the same time, they also created rifles and cannons.
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In the beginning, rockets were made for entertainment, but years later the Chinese used them for weapons. The roeckets were powered by black powder made of saltpeter, charcoal, and sulfur.
