The sailor's sea-book1879 |
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Страница 11
... iron ship . I append the Names of the Points of the Compass , with their numerical and angular values . Names . Points . Angles . Points . Names . North North 0 0 ° 0 ' South South 2 48 5 37 8 26 N. ¿ E. N. b W. 11 15 S. b E. S. b W. 14 ...
... iron ship . I append the Names of the Points of the Compass , with their numerical and angular values . Names . Points . Angles . Points . Names . North North 0 0 ° 0 ' South South 2 48 5 37 8 26 N. ¿ E. N. b W. 11 15 S. b E. S. b W. 14 ...
Страница 12
... iron , points to the 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 ...
... iron , points to the 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 ...
Страница 30
... iron , or composite . A DAY'S WORK . The reader is now assumed to have a clear under- standing of the preparatory work of Navigation , and I shall proceed to the day's work . There are two kinds of days — the astronomical or seaman's ...
... iron , or composite . A DAY'S WORK . The reader is now assumed to have a clear under- standing of the preparatory work of Navigation , and I shall proceed to the day's work . There are two kinds of days — the astronomical or seaman's ...
Страница 49
... iron stanchions in the vicinity . Soft iron , without any magnetism of its own , may , under certain conditions , become temporarily a magnet ; and hard iron acquires a considerable amount of mag- netism either by position or ...
... iron stanchions in the vicinity . Soft iron , without any magnetism of its own , may , under certain conditions , become temporarily a magnet ; and hard iron acquires a considerable amount of mag- netism either by position or ...
Страница 50
... iron two feet long and half an inch in diameter , and raising it vertically , try its effect on the compass ? —whatever might be its effect as it lay horizontally , it would , when raised per- pendicularly , attract the North - marked ...
... iron two feet long and half an inch in diameter , and raising it vertically , try its effect on the compass ? —whatever might be its effect as it lay horizontally , it would , when raised per- pendicularly , attract the North - marked ...
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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