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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 ...
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 ...
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. Among the earliest inventions were the abacus, the sundial, and the Kongming ...
This article lists inventions and discoveries made by scientists with Pakistani nationality within Pakistan and outside the country, post the independence of Pakistan in 1947. Chemistry Development of the world's first workable plastic magnet at room temperature by organic chemist and polymer scientist Naveed Zaidi.
A cave in the Himalayas revealed the most detailed explanation yet for the ancient civilization’s decline. Indus valley civilization disappeared 3,600 years ago — we finally know why, study ...
Many Chinese inventions — paper and printing, gunpowder, porcelain, the magnetic compass, the sternpost rudder, and the lift lock for canals — made major contributions to economic growth in the Middle East and Europe. [citation needed] The outside world remained uninformed about Chinese work in agronomy, pharmacology, mathematics, 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.