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Porcelain is made by combining clay with the minerals quartz and feldspar.
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The Chinese first made steel, a very useful metal, before 200 B.C.E. Steel is made from iron, but it is less brittle than iron and easier to bend into different shapes.
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It was made of very thin bamboo.
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It is thin wheat/dough that is boiled in water
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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.
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Acmillis discovered gunpodwer when trying to find out how to get eternal life.
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Printers used woodblock printing to make the cards from thick paper.
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Dutch traders brought seeds from Japan and China to their colonies in Indonesia.
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Rockets were powered by a black powder made of saltpeter, charcoal, and sulfur. At first, rockets were used only in fireworks. Later, the Chinese used them as weapons.
