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" ... in the ship ; and that the errors produced by this combined attraction, were proportionate to the sines of the angles between the ship's head and the magnetic meridian. On the magnetic equator, where the dipping needle stands horizontally, or there... "
A Manual of Natural and Experimental Philosophy: Being the Substance of a ... - Page 271
by Charles Frederick Partington - 1828 - 304 pages
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Blackwood's Magazine, Volume 6

1820 - 774 pages
...labour and consideration, it appeared to him, " that the errors produced by local attraction should be proportionate to the sines of the angles between the ship's head and the magnetic meridian ; and, therefore, in order to find this proportion, it seemed probable the following Rule would be...
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The Quarterly Journal of Science and the Arts, Volume 4

1818 - 472 pages
...needle had dipped, it was the north end of the compass needle which was attracted by the iron work in the ship ; and that the errors produced by this...had dipped, observations again showed errors in the compass needle, but they were of a contrary nature to those experienced in the northern hemisphere,...
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Journal of Science and the Arts, Volume 4

1818 - 514 pages
...needle had dipped, it was the north end of the compass needle which was attracted by the iron work in the ship ; and that the errors produced by this...had dipped, observations again showed errors in the compass needle, but they were of a contrary nature to those experienced in the northern hemisphere,...
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Annals of Philosophy, Or, Magazine of Chemistry, Mineralogy ..., Volume 15

Thomas Thomson - 1820 - 518 pages
...easily calculated ; the anomalies produced by the attraction of the iron in the ship being found to be proportionate to the sines of the angles between the ship's head and the magnetic meridian. 8. A compass placed on either side of the ship's deck directly opposite to, or abreast of, the focus...
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The Annals of Philosophy, Volume 15

Thomas Thomson, Richard Phillips, Edward William Brayley - 1820 - 518 pages
...easily calculated ; the anomalies produced by the attraction of the iron in the ship being found to be proportionate to the sines of the angles between the ship's head and the magnetic meridian. 8. A compass placed on either side of the ship's deck directly opposite to, or abreast of, the focus...
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London Journal of Arts, Sciences and Manufacturers, and Repertory ..., Volume 1

William Newton, Charles Frederick Partington - 1820 - 538 pages
...at the magnetic equator. It is a maximum when the ship's course is W. or E., and it is proportional to the sines of the angles between the ship's head and the magnetic meridian. That a compass placed in either side of the ship's deck, directly opposite to the focus, gives a correct...
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The London Journal of Arts and Sciences, Volume 1

1820 - 534 pages
...at the magnetic equator. It is a maximum when the ship's course is W. or E., and it is proportional to the sines of the angles between the ship's head and the magnetic meridian. That a compass placed in either side of the ship's deck, directly opposite to the focus, gives a correct...
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The Edinburgh Philosophical Journal, Volume 2

1820 - 442 pages
...vanishes at the magnetic equator. It is a maximum when the ship's course is Wor E., and it is proportional to the sines of the angles between the ship's head and the magnetic meridian. 5. A compass placed in either side of the ship's deck, directly opposite to the focus, gives a correct...
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An Account of the Arctic Regions: With a History and Description ..., Volume 2

William Scoresby - 1820 - 632 pages
...easily calculated ; the anomalies produced by the attraction of the iron in the ship, being found to be proportionate to the sines of the angles between the ship's head and the point of no anomaly, which point is most commonly the magnetic meridian, (a.) On the supposition that...
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The Leeds Correspondent: A Literary, Mathematical, and ..., Volume 3

1821 - 312 pages
...labour and consideration, it appeared to him, " that the errors produced by local attraction should be proportionate to the sines of the angles between the ship's head and the magnetic meridian ; and, therefore, in order to find this preportion, it seemed probable the following Rule would be...
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