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Compass (1117)
Before the compass, getting lost was more or less a guarantee. The discovery of Magnetic North allowed man to explore the world. The first incontestable evidence for the use of a compass as a navigational device appeared in Chinese records in 1117. Early compasses were typically constructed by floating magnetized needles in bowls of water.
指南針（1117年）
在指南針發(fā)明前，迷失方向是經(jīng)常發(fā)生的事情。磁北的發(fā)現(xiàn)讓人們可以探索世界。指南針作為導(dǎo)航設(shè)備使用的首個明確證據(jù)出現(xiàn)在1117年的中國。早期的指南針是在一碗水中放置一枚浮動的磁化針。
