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In the second century, paper was probalbly made from hemp. Later it was made from the bark of a mulberry tree. The way of making paper was kept a secret for over 500 years so that the chinese could get a profit from it.
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The Ancient Chinese started to create safer ships with water tight, compartments using caulk. If a leak were to occur in one compartment, it would be isolated in only that area.
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The ancient Chinese took the idea of paddle boats and created something better. They arranged paddles in a wheel formation and walked on a treadmill like object to allow the wheels to move the paddles through the water and make the boat go forward.
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The chinese made bridges on an arch. However, instead of a semi circle, they created a partial circle. This is because these bridges used up less materails and ere stronger.
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This type of printing was called woodblock printing. The printer drew symbols on the paper, the paper was then glued to a wood block. After the glue dried, the printer carved the wood around the characters, leaving teh wood with a symbol.
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Around this time, tea became very poular. Tea houses started to increase in population. Even a book was made about tea and how it was created.
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Chinese alchemists were believed to have been trying to mix natuarl substances, to make a formula to live forever. However, instead of making that, a formula for gunpowder was created.
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Early flamethrowers were used with gunpowder and oil combined. The chinese used these to spray enemies with a stream of fire.
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Although at this time rocket technology had already been invented, this was when the technology used to make rockets was spread through China and Europe.
