Advanced Ocean Navigators

Maps, compasses, astrolabes, and calipers are among the early tools used by ocean navigators. In the modern era, these tools have been largely replaced by electronic and technological equivalents. But, lets us not forget that satellite position finding system are aids to navigation, not a means of navigation.

 

 

 

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Until the fifteenth 

century mariners 

were essentially 

coastal navigators.

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