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" Variation of the Compass is the angle between the True North and the Magnetic North. This difference or error arises from the Magnetic Poles not coinciding with the Terrestrial ones, and is due entirely to the influence of the earth on Magnetic Needles,... "
International Shipping & Shipbuilding Directory - Sivu 24
1890
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Seamanship

William Culley Bergen - 1875 - 87 sivua
...17.—Deviation ef the Compass is the angle between the compass needle and the magnetic meridian. 18.—The Error of the Compass is the angle between the true North and the North point of the compass. 19.—Lee Way is the angle between the ship's wake and the line of her...

The Engineer's Handy-book: Containing a Full Explanation of the Steam-engine ...

Stephen Roper - 1884 - 675 sivua
...---‘¿¿¿d for deviation, variation, leeway, ani - 1 •.q¿k nn ths nesan Variation of the compass. —The variation of the compass is the angle between the true north and the magnetic north. There are only few places where the needle points exactly to the true north. When it points to the...

A guide book to the Local marine board examination. The ordinary examination ...

Thomas Liddell Ainsley - 1885
...terrestrial meridian. This error arises from the magnetic poles not being coincident with geographical ones, and is due entirely to the influence of the earth on magnetic needles (see pages 7 ; and 96). * There is a very common error prevalent respecting the best position on the...

Nautical Almanac

1900
...receive a greater amount of [satisfaction in the use of the chronometer. Explanation of Compass Terms. Variation of the compass is the angle between the...magnetic needles, which is the same at few parts of world. IfOcal Attraction is the error caused by some disturbing force outside the ship, and belonging...

Nautical Almanac

1901
...receive a greater amount of satisfaction in the use of the chronometer. Explanation of Compass Terms. Variation of the compass is the angle between the...needles, which is the same at few parts of the world. Deviation of the compass is the angle included between the magnetic North and the compass North. This...

Great Lakes Pilot...1921: Lake St. Clair, St. Clair river, lake Huron ...

United States. Hydrographic Office - 1921
...publications and charts before leaving these ports. THE COMPASS—COMPASS ERROR. EXPLANATION OF COMPASS TERMS. poles not coinciding with the terrestrial ones, and...of the earth on magnetic needles, which is the same only at few parts of the world. Deviation of the compass is the angle included between the magnetic...




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