Navigating by Water, Sky, and Wind -Navigation Sails Onward

Time passed, and the art of navigation eventually set a new course.  Mechanical instruments began to reduce dependence upon the naked eye and guesswork. The astrolabe and later the more accurate sextant-devices that determined the elevation of the sun or a star above the horizon-allowed mariners to find their latitude north or south of the equator.  The marine chronometer-a reliable, seaworthy clock-gave them the ability to determine longitude, their east or west position. These instruments were far more precise than dead reckoning.

Today, gyrocompasses indicate north without a magnetic needle.  The Global positioning System can indicate one's exact location at the push of a few buttons. Electronic displays often replace paper charts.  Yes, navigation has become and exact science. But all this advancement only increases our respect for the courage and skill of the ancient seafarers who guided their crafts through vast and empty seas with only their knowledge of water, sky, and wind.

Next time:Young People Ask .  . How Can I Stop Trying to Be Perfect?

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