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Marine Charts and Navigation

Marine Charts and Navigation. Applied Oceanography 2009. Latitude Parallels of arc 0º-90º N-S from the equator to poles 1º = 60’ (1’=60 sec) small circles. Longitude Meridians of angle 0º (prime meridian) -180º E-W pole to pole Prime meridian is measured at Greenwich England

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The Compass

The Compass. An Important Chinese Invention. All About the Compass. It is a device for determining direction. The simplest form of the compass is a magnetized needle mounted on a pivot so that it can turn freely. The needle aligns itself with Earth's magnetic field .

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