Compass

A compass is a navigational tool that uses magnetism. It has an arrow which points in the direction of the North Magnetic Pole. A compass is very useful for navigating on oceans and in deserts, or other places where there are few landmarks.

The first compass was invented by ancient Chinese in the Han Dynasty. It was a large spoon-like magnetic object made of magnetite ore set upon a square bronze plate.[1]

References

  1. ↑ Smith College Museum of Ancient Inventions, http://www.smith.edu/hsc/museum/ancient_inventions/compass2.html
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