What are the reasons for the different effects of the three great inventions in the West and China?

You can understand the Needham puzzle, that is, why China made these achievements in the Four Great Inventions long ago, but it was later surpassed by the West.

Personally, one is the mentality. At that time, China was holding a big country mentality, and "China was rich in products", so it did not accept new affairs, let alone study them.

In addition, it is necessary to mention the development mode of science and technology in China feudal society. The four great inventions, to put it mildly, have an element of luck, because scientific research at that time did not form a system, while the west created more things with greater influence on the world after the industrial revolution, which was realized by relying on a system of step-by-step research on affairs.