A Treatise on Electromagnetic Phenomena, and on the Compass and Its Deviations Aboard Ship: Mathematical, Theoretical, and Practical, Volume 2J. Wiley & Sons, 1903 - Compass |
From inside the book
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Page 561
... placed in a brass vessel to jump wildly about- " to rave " -under the varied movement of this natural magnet : but these matters had been known long pre- viously ; there is no mention , however , of the lodestone having been used to ...
... placed in a brass vessel to jump wildly about- " to rave " -under the varied movement of this natural magnet : but these matters had been known long pre- viously ; there is no mention , however , of the lodestone having been used to ...
Page 566
... placed will turn in its little vessel until the north pole of the stone will stand in the direction of the north pole of the heavens , and the south pole in that of the south pole of the heavens , by the will of God . ” In those days ...
... placed will turn in its little vessel until the north pole of the stone will stand in the direction of the north pole of the heavens , and the south pole in that of the south pole of the heavens , by the will of God . ” In those days ...
Page 576
... placed in a trial - card in the exact positions they will finally occupy , and tested as a magnetic system . The principal tests of magnetic strength are by the methods of torsion , oscillation , and deflection . The method by Torsion ...
... placed in a trial - card in the exact positions they will finally occupy , and tested as a magnetic system . The principal tests of magnetic strength are by the methods of torsion , oscillation , and deflection . The method by Torsion ...
Page 580
... placed on the carriage , and the deflection of M noted and recorded with the number of the needle ; the latter is turned end for end and the deflection again noted and recorded ; the mean of both angles is taken , and the tan- T K M ...
... placed on the carriage , and the deflection of M noted and recorded with the number of the needle ; the latter is turned end for end and the deflection again noted and recorded ; the mean of both angles is taken , and the tan- T K M ...
Page 591
... placed with its sides successively in contact with a powerful magnet : this tested the hold it had upon its magnetism ; col . ( 6 ) shows the result - all lost , and mag- net H made such little resistance as to part with 92 per cent ...
... placed with its sides successively in contact with a powerful magnet : this tested the hold it had upon its magnetism ; col . ( 6 ) shows the result - all lost , and mag- net H made such little resistance as to part with 92 per cent ...
Other editions - View all
A Treatise on Electromagnetic Phenomena, and on the Compass and ..., Volume 1 Timothy Augustine Lyons No preview available - 2018 |
A Treatise on Electromagnetic Phenomena, and on the Compass and Its ... Timothy Augustine Lyons No preview available - 2015 |
Common terms and phrases
angle axis azimuth Bearing of True binnacle brass center of gravity circle coefficients cols compass course compensating component cos² cosine D.sin deflected needle Deviations Produced diameter dip circle distance disturbing dygogram Earth east effect equal equations error ether waves experiments formula four needles heeling hence horizontal inches induced inertia keel length Line on Wall magnetic course magnetic force magnetic moment mass maxima and minima means method moment of inertia motion netic observations obtained oscillation period of oscillation permanent magnetism pivot placed plane plates polarity pole quantities radius represent S₁ S₂ second member semicircle semicircular sextantal ship swings ship's head side sin² sine soft iron south pole starboard steel magnet strength Substituting swung tion True Meridian Line tube varied versin vertical whence wire ΙΟ
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