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The magnetic compass was first invented as a device for divination as early as the Chinese Han dynasty and Tang dynasty (since about 206 BC). [1] [3] [34] The compass was used in Song dynasty China by the military for navigational orienteering by 1040–44, [22] [35] [36] and was used for maritime navigation by 1111 to 1117. [37]
A side view of a pound lock for canals, invented in China in the 10th century and described by Shen. Five bracket arm bases and two cantilever arms, from the Yingzao Fashi of 1103. The writing of Shen Kuo is the only source for the date when the drydock was first used in China. [44]
The Chinese astronomer Geng Shouchang of the Han dynasty (202 BC – 220 AD) invented it separately in China in 52 BC, and the Han dynasty polymath Zhang Heng (78–139 AD) was the first to apply motive power using a set of complex gears rotated by a waterwheel which was powered by the constant pressure head of an inflow clepsydra clock, the ...
The compass in the Four Great Inventions was formerly the compass of ancient China. It is a kind of direction-indicating tool, which is widely used in navigation, field exploration and other fields. In ancient times, it had a profound influence on trade, war and cultural exchange.
The Song dynasty (Chinese: 宋朝; 960–1279 CE) witnessed many substantial scientific and technological advances in Chinese history.Some of these advances and innovations were the products of talented statesmen and scholar-officials drafted by the government through imperial examinations.
Among the Four Great Inventions, the magnetic compass was first invented as a device for divination as early as the Chinese Han dynasty (since c. 206 BC), [1] [2] and later adopted for navigation by the Song dynasty Chinese during the 11th century. [3] [4] [5] The first usage of a compass recorded in Western Europe and the Islamic world ...
It expands its scope beyond the Chinese homeland with the growth of the Chinese Empire under the Han dynasty and enters a golden age with the Han dynasty invention of the compass as one of the Four Great Inventions. The compass was then used from the 11th century during the Song dynasty, Yuan dynasty, Ming dynasty, and Qing dynasty in the study ...
Children's instructive toy chariot in Chinese display at Expo 2005 in Japan. The invention of the south-pointing chariot also made its way to Japan by the 7th century. The Nihon Shoki (The Chronicles of Japan) of 720 described the earlier Chinese Buddhist monks Zhi Yu and Zhi You constructing several south-pointing Chariots for Emperor Tenji of Japan in 658. [9]