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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 ...
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 ...
Map scaling: The foundations for quantitative map scaling goes back to ancient China with textual evidence that the idea of map scaling was understood by the second century BC. Ancient Chinese surveyors and cartographers had ample technical resources used to produce maps such as counting rods , carpenter's square 's, plumb lines , compasses for ...
Needham notes that the invention of the crossbow "far outstripped the progress in defensive armor", which made the wearing of armor useless to the princes and dukes of the states. [4] At this time, there were also many nascent schools of thought in China—the Hundred Schools of Thought (諸子百家), scattered among many polities.
Technology during the Tang period was built also upon the precedents of the past. The mechanical gear systems of Zhang Heng (78–139) and Ma Jun (fl. 3rd century) gave the Tang engineer, astronomer, and monk Yi Xing (683–727) inspiration when he invented the world's first clockwork escapement mechanism in 725. [22]
China was a global scientific and technological leader up until the early years of the Ming dynasty.Ancient and medieval Chinese discoveries and Chinese innovations such as papermaking, printing, the compass, and gunpowder (the Four Great Inventions) contributed to the economic development of ancient and medieval East Asia, the Middle East and Europe.
In 1888, Edison developed a china doll equipped with a cylindrical phonograph with pre-recorded messages. It was a commercial flop — consumers thought the dolls were creepy.
He was one of the first mathematicians in China to work on spherical trigonometry. [5] Gou derived a cubic interpolation formula for his astronomical calculations. [ 6 ] His calendar, the Shoushi Li (授時暦) or Calendar for Fixing the Seasons , was disseminated in 1281 as the official calendar of the Yuan dynasty. [ 7 ]