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Steel is made by iron. The chinese make steel by melting and molding iron ores. Then they blow air into the mold making a chemical reaction creating mold.
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Paper was inveted by the Chinese. They made it by the tree bark of mulberry trees.
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This is maed by tea leafs getting boiled in water. The Chinese mostly used this drink for medice
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The Chinese clock was more accruate then an hourglass and other time keeping objects back in the 9th centuary. This clock was a wheel that made a complete turn every 24 hours
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Alcamists accidenly invented gun powder when they were trying to find a substance that would enable us to live ever lasting life.
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Printers used wood block to print on the cards. Today, gamecards are used around the world
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Before paper money, there was just coins for money. Paper money was printed by wooden blocks, just like game cards. A single bill would have many colors in 900 BCE.
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The Chinese flamethrower was the first invention to use gunpowder. The Chinese used them to spray enemies trying to invade.
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Rockets were powered by substances like black powder, charcol, sulfer, and salt powder. All of the rockets today are based off of the Chinese rocket.
