Science

Amazing Inventions from Ancient China

Ancient China is famous for the 'Four Great Inventions': papermaking, printing, gunpowder, and the compass, which all had a revolutionary global impact. Paper was refined around 105 AD by Cai Lun using plant fibers, replacing heavier materials like bamboo strips. Gunpowder was discovered accidentally by alchemists in the 9th century while seeking an elixir of immortality, and was first used for fireworks and later for military use like fire arrows and bombs. The compass, starting as a geomancy tool (Si Nan) during the Han Dynasty, evolved into a floating needle used for maritime navigation by the 11th century.

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