The Chinese invented the water-powered milling machine, from which we get the word mill. The first water-powered mills were made in China, and they were used to make ships' sails
The Chinese are also the ones that developed the spinning wheel for cotton textile production. Spinning wheels were used in Europe until the Industrial Revolution, and they were widely believed to be an invention of the Chinese. In fact, many people still think of spinning wheels as an ancient technology rather than an invention of the modern world (although it's true that there are some older examples).
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