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The earliest Chinese paper was probably made from hemp and then the bark of the mulberry tree. Later, the Chinese used rags.the Chinese were the only people in the world who knew the secret of making paper.
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The first Chinese compasses were pieces of a magnetic mineral
called lodestone.Earth itself is like a giant magnet with north and south poles. The compass needles will always point up toward the north. -
The Romans had also developed a paddlewheel-powered boat, but it was powered by oxen.These boats were also much easier to maneuver than other types of watercraft.
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A Chinese engineer completed a new type of arched bridge.Europe, Roman-designed bridges rested on arches that were half-circles. The new Chinese bridge used arches that were a smaller part,
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The Chinese invented a technique called woodblock printing.printing. The printer first drew characters (symbols) on paper. He then glued the paper to a wooden block.printing. The printer first drew characters (symbols) on paper. He then glued the paper to a wooden block.
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Alchemists were making alchemy (which is a potion that will ake somone live forever) when they axadently mixed salpiter and another chemical and they made Gun powder
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Early flamethrowers contained gunpowder mixed with oil. The Chinese used them to spray enemies with a stream of fire.
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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. The rockets that we use to explore space today are based on principles discovered by the Chinese.
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tmade by letting tea leaves steep in boiling water. Was drunk mostly as medicine.Tea farmers grow small tea trees or shrubs on high ground usually above 4,000 feet.
