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Pat Shingleton: Charting the Course

8 months ago August 08, 2014 Aug 8, 2014 Friday, August 08 2014 Friday, August 08, 2014 7:44:57 AM EDT in Pat Shingleton Column

Without charts, the only means to determine an explorer's location was celestial navigation. The captain's chart was little more than the ship's log. On old maps, a circular directional emblem is a "wind rose." Mariner's in Homer's time identified direction with wind as early cartographers were part artist, astronomer; combining wind direction into the "wind rose." When nautical charts were introduced in the 14th century, four primary winds were schematically positioned around a circle, representing the horizon. Always present was the "wind-rose," containing a radial set of points, such as a star, directed into each wind position. The thumb lines radiated from the central point of the rose, connected to each directional point. More tomorrow.

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