Longitude Sailing Directions 142 Grand Canyon Wood Map Details:

Grand Canyon Wood Map Details:

Just off the Inside Passage's beaten path are countless channels

Chart Image Size: 41" x 30⅛"

Chart Image Size: 58¾" x 35½"

Longitude Sailing Directions 142 Grand Canyon Wood Map Details:by Dava Sobel The dramatic human story of an epic scientific quest and of one man's forty year obsession to find a solution to the thorniest scientific dilemma of the day "the longitude problem." Anyone alive in the eighteenth century would have known that "the longitude problem" was the thorniest scientific dilemma of the day and had been for centuries. Lacking the ability to measure their longitude, sailors throughout the great ages of exploration