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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 ...
The four inventions do not necessarily summarize the achievements of science and technology in ancient China. The four inventions were regarded as the most important Chinese achievements in science and technology, simply because they had a prominent position in the exchanges between the East and the West and acted as a powerful dynamic in the ...
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.
From one perspective the most important element of China's science and technology system has been its human capital — its trained scientists and engineers. By the 1980s it was widely recognized in the Chinese press that scientists, like all intellectuals, had been poorly treated, underpaid, and burdened with difficult living conditions that ...
Chinese bronzeware (3 C, 21 P) Chinese games (7 C, 27 P) Chinese lacquerware (4 P) Chinese musical instruments (8 C, 111 P) ... Pages in category "Chinese inventions"
Exhausted by the pressure to succeed as a photographer, Litsky Li accepted a better offer: quit work to become one of China’s growing legions of children paid by their families to stay home.
Modern Japanese taketombo bamboo-copters; wooden type with winding thread (left); plastic type (right) A decorated Japanese taketombo propeller. The bamboo-copter, also known as the bamboo dragonfly or Chinese top (Chinese zhuqingting (竹蜻蜓), Japanese taketonbo 竹蜻蛉), is a toy helicopter rotor that flies up when its shaft is rapidly spun.