low-tech methods specifically designed for use aboard small powerboats and sailboats

California Coast  3-D Nautical Wood Chart (Large)

Chart Image Size: 46⅛" x 16½"

Along the way

anchorage information and expanded "Goin' Ashore" articles on ports along the way

Longitude world cruising low-tech methods specifically designed forby 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