<Ul> <Li> view </Li> <Li> talk </Li> <Li> </Li> </Ul> <P> 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 . </P> <P> Among the earliest inventions were the abacus, the "shadow clock," and the first items such as Kongming lanterns . The Four Great Inventions--the compass, gunpowder, papermaking, and printing--were among the most important technological advances, only known to Europe by the end of the Middle Ages 1000 years later . The Tang Dynasty (AD 618--906) in particular was a time of great innovation . A good deal of exchange occurred between Western and Chinese discoveries up to the Qing Dynasty . </P> <P> The Jesuit China missions of the 16th and 17th centuries introduced Western science and astronomy, then undergoing its own revolution, to China, and knowledge of Chinese technology was brought to Europe . In the 19th and 20th centuries the introduction of Western technology was a major factor in the modernization of China . Much of the early Western work in the history of science in China was done by Joseph Needham . </P>

Many inventions were first developed under the rule of chinese dynasties including
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