The sailor's sea-book1879 |
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Страница 9
... magnet , has only horizontal motion , and is mounted so as to rest on a steel pivot that rises from the centre of the bottom of a brass or copper bowl . The bowl has a glass cover , so that the indications of the card may the more ...
... magnet , has only horizontal motion , and is mounted so as to rest on a steel pivot that rises from the centre of the bottom of a brass or copper bowl . The bowl has a glass cover , so that the indications of the card may the more ...
Страница 11
... 30 70 183 73 7 75 78 56 45 81 333 84 22 87 11 90 S.S.E. S.S.W. S.E. & S. S. W. b S. S.E. S.W. S.E. 6 E. S.W. ¿ W. E.S.E. W.S.W. E. b S. W. b S. East West THE VARIATION OF THE COMPASS . The magnetic needle , THE MARINER'S COMPASS . 11.
... 30 70 183 73 7 75 78 56 45 81 333 84 22 87 11 90 S.S.E. S.S.W. S.E. & S. S. W. b S. S.E. S.W. S.E. 6 E. S.W. ¿ W. E.S.E. W.S.W. E. b S. W. b S. East West THE VARIATION OF THE COMPASS . The magnetic needle , THE MARINER'S COMPASS . 11.
Страница 12
... magnetic poles of the earth , and the direction in which it trends at any place is called the magnetic meridian . As the magnetic poles are not coincident with the earth's true poles , which are the extremities of the axis of revolution ...
... magnetic poles of the earth , and the direction in which it trends at any place is called the magnetic meridian . As the magnetic poles are not coincident with the earth's true poles , which are the extremities of the axis of revolution ...
Страница 14
... magnetic or com- pass course to be steered , apply the variation to the right ; because the Variation is Westerly . DISTANCE AND THE NAUTICAL MILE . The distance that a ship makes good is reckoned in nautical miles , and no other ...
... magnetic or com- pass course to be steered , apply the variation to the right ; because the Variation is Westerly . DISTANCE AND THE NAUTICAL MILE . The distance that a ship makes good is reckoned in nautical miles , and no other ...
Страница 19
... magnetic course to be steered . To find the distance between those two , or any other two places on the chart : measure off with a pair of dividers half the distance between them ; opposite the middle point , on the graduated meridian ...
... magnetic course to be steered . To find the distance between those two , or any other two places on the chart : measure off with a pair of dividers half the distance between them ; opposite the middle point , on the graduated meridian ...
Чести термини и фразе
altitude anchor angle apply bearing boat centre chart chro chronometer Circle Sailing cloth boards Colonel Sir William compass course correct magnetic course and distance Dead Reckoning deck Deviation Diff direction Dist Distance Signals East easterly Edition Engineers equator Flags gale give Greenwich mean hauled HENRY LAW hoist horizon Hour-angle hurricane iron latitude leeway light Long LUDGATE HILL mast meridian meridian altitude miles minutes Naut Nautical Almanac Navigation noon North northern hemisphere numerous Illustrations observed parallel parallel ruler Parallel Sailing Pennant pieces of timber Plates port practical protractor quadrant RALPH TATE rigging rope Rudimentary Treatise rule SCOTT BURN semicircle sextant Ship Date ship's head ship's place side Sir William Reid South southern Steam Ships steered storm subtract sun's lower limb tion track Traverse Table true course tude variation vessel West whirlwind William Reid wind Woodcuts yard
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