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... educing friction during motion.

By applying rolling bearings to the ox-powered waterwheel, the oxen’s workload was drastically reduced. What previously required four oxen to operate could now be powered by just two.

In his previous life, the invention of rolling bearings could be traced back to the 17th century. The most crucial component of the bearing was the steel ball, while the outer casing was relatively simple to produce.

Even so, Xiao Ming couldn’t produce high-pr ...

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