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.

指南针（1117年）

在指南针发明前，迷失方向是经常发生的事情。磁北的发现让人们可以探索世界。指南针作为导航设备使用的首个明确证据出现在1117年的中国。早期的指南针是在一碗水中放置一枚浮动的磁化针。