If our ancient science and technology were not spread to other countries, our country would still fall behind.
First, Eastern civilizations such as China are different from Western civilizations. They are mainly moderate and do not pay attention to science and technology such as physics. Scientists generally do not have high status, while the priests in Western churches are all rentiers. Class, usually do not work, many priests mainly spend their time engaged in science and technology, such as Mendel and the like. In modern times, they relied on patented technology to allow inventors to benefit, which greatly promoted the development of science.
Second, China has not experienced a major period of division since the fifth generation, so the update of military technology is slow, and China is not very aggressive, so it does not pay much attention to the update of combat methods and equipment. So much so that gunpowder has not been well developed; on the contrary, in the West (Europe), various countries are constantly fighting wars, and have experienced several invasions by barbarians (Huns, Mongols, etc.), not to mention that they themselves organized crusades to invade the Middle East. .
Third, China’s weapons later lagged behind those of the West. For example, the Chinese crossbow reached its peak in the Song Dynasty, but was gradually replaced by firearms in the Ming Dynasty (in the West, during the same Renaissance period as the Ming Dynasty, firearms also replaced crossbows). The crossbow is inferior to the early firearms of the 16th century in terms of power, accuracy and ease of operation (relevant records can be found in the "New Book of Jixiao" written by the famous Ming Dynasty general Qi Jiguang), let alone modern firearms