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The Four Great Inventions are inventions from ancient China that are celebrated in Chinese culture for their historical significance and as symbols of ancient China's advanced science and technology. They are the compass , gunpowder , papermaking and printing .
This sub-section is about paper making; for the writing material first used in ancient Egypt, see papyrus.. Paper: Although it is recorded that the Han dynasty (202 BC – AD 220) court eunuch Cai Lun (50 AD – AD 121) invented the pulp papermaking process and established the use of new materials used in making paper, ancient padding and wrapping paper artifacts dating from the 2nd century BC ...
Instructions for making astronomical instruments from the time of the Qing dynasty.. Ancient Chinese scientists and engineers made significant scientific innovations, findings and technological advances across various scientific disciplines including the natural sciences, engineering, medicine, military technology, mathematics, geology and astronomy.
Pi calculated as : The ancient Egyptians, Babylonians, Indians, and Greeks had long made approximations for π by the time the Chinese mathematician and astronomer Liu Xin (c. 46 BC–23 AD) improved the old Chinese approximation of simply 3 as π to 3.1547 as π (with evidence on vessels dating to the Wang Mang reign period, 9–23 AD, of ...
The Chinese of the ancient Han dynasty (202 BCE–220 CE) figured out how to create steel by smelting together the carbon intermediary of wrought iron and cast iron by the 1st century BCE. [ 91 ] [ 92 ] [ 93 ] However, there were two new Chinese innovations of the Song dynasty to create steel during the 11th century.
In Ancient Rome, it was found in hot baths and public buildings, and in the homes of the very wealthy because of the high cost. The hypocaust was created by making a structure under the floor of ...
In the context of China's high yield agriculture (hence surpluses in the economy which were translated into leisure time for other pursuits) and Confucian [meritocracy] (hence a continued over-supply of the literate vis-à-vis the openings in officialdom and persistent record keeping by the premodern standards), [1] [2] China became one of the hotbeds of scientific discoveries and ...
China dominates the global race in generative artificial intelligence patents, filing more than 38,000 patents from 2014 to 2023, a U.N. report showed.