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20 Cards in this Set
- Front
- Back
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Map Projection |
a method of representing the 3 dimensional surface of the Earth on a 2 dimensional map |
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Underwater Archaeology |
the study of marine history and prehistory through the excavation and analysis of underwater sites |
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Satellite Navigation |
a form of position finding using radio transmissions from satellites with sophisticated on board automatic equipment |
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Aquanaut |
underwater explorer |
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Navigation |
the art and science of conducting a boat safely from one point to another |
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Ballast |
a heavy material used to stabilize a ship |
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Knot |
a measure of speed equal to nautical mile (6076 feet) per hour |
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Waypoint |
coordinates of each stage of a sea journey |
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Intercoastal Waterway (ICW) |
bays, rivers and canals along the coast that are connected so that vessels may travel without going into the sea |
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Course |
a direction taken by the ship |
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Heading |
the direction in which a vessel's bow points at any given time |
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Ebb |
a recording current |
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Inland Navigation |
communication by canals and rivers |
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Bearing |
the direction of an object expressed either as a true bearing as shown on a chart or as a bearing relative to the heading of the boat |
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Sea Mile |
approx. 1,842 meters at the equator and 1,861 meters at the pole |
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Points of Sail |
the headings of a sailboat in relation to the wind |
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Leeward |
on or toward the sheltered side of the ship |
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Rhump |
the angle between two points on a compass |
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Tack |
to turn the bow of a sailboat through the wind, so that the sails fill on the opposite side |
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Upwind |
against the direction of the wind |
