Compass Tortoise, Southern Song Dynasty

A compass is a simple device for orientation identification. It consists of a rotational magnetic needle loaded on a shaft and a directional plate. It is one of the four great inventions of ancient China that has exerted profound influence on the development of human civilization. In Chinese history, numerous skillful craftsmen created interesting and delicate directional devices, this is photograph is a model of the Compass Tortoise designed by Chen Yuanliang in the Southern Song Dynasty (1127-1279)

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1127 1279 Chen Compass Directional Orientation Replica Tortoise

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