A Treatise on Electromagnetic Phenomena, and on the Compass and Its Deviations Aboard Ship: Mathematical, Theoretical, and Practical, Volume 2J. Wiley & Sons, 1903 - Compass |
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Page 582
... Table 29— taken from Dr. Scoresby . The magnets used were all of the same length - six inches . PRINCIPLEs of magnetism anD MECHANICS . MECHAN TABLE 29 . 582 MANUFACTURE OF THE COMPASS .
... Table 29— taken from Dr. Scoresby . The magnets used were all of the same length - six inches . PRINCIPLEs of magnetism anD MECHANICS . MECHAN TABLE 29 . 582 MANUFACTURE OF THE COMPASS .
Page 583
... TABLE 29 . 583 COMPARISON OF TANGENT - DEFLECTION AND TORSION AS METHODS OF DETERMINING THE STRENGTH OF MAGNETS . TANGENT METHOD . No. of Magnet . Weight in Grains . Distance from deflected needle 24 in . 4 lengths of magnet . TORSION ...
... TABLE 29 . 583 COMPARISON OF TANGENT - DEFLECTION AND TORSION AS METHODS OF DETERMINING THE STRENGTH OF MAGNETS . TANGENT METHOD . No. of Magnet . Weight in Grains . Distance from deflected needle 24 in . 4 lengths of magnet . TORSION ...
Page 585
... Table 29 were from cols . ( 4 ) and ( 6 ) of that table . It will be seen by cols . ( 4 ) and ( 7 ) , Table 30 , that the two methods - Tangent and Sine - give almost identical strength for the same magnet . Bar A was oscillated twice ...
... Table 29 were from cols . ( 4 ) and ( 6 ) of that table . It will be seen by cols . ( 4 ) and ( 7 ) , Table 30 , that the two methods - Tangent and Sine - give almost identical strength for the same magnet . Bar A was oscillated twice ...
Page 590
... Table 31 from Scoresby : The magnets of TABLE 31 . RATIO OF INCREASE OF MAGNETISM WITH MASS IN SOLID BARS . Highest Power . Reduced Power . Tenacity of Hold Upon Magnetism . Designa- tion of Weight in Grains . Magnet . Mean Deflection ...
... Table 31 from Scoresby : The magnets of TABLE 31 . RATIO OF INCREASE OF MAGNETISM WITH MASS IN SOLID BARS . Highest Power . Reduced Power . Tenacity of Hold Upon Magnetism . Designa- tion of Weight in Grains . Magnet . Mean Deflection ...
Page 591
... TABLE 32 . Number of plates together .. Angles of torsion I 2 4 6 82 ° 8 150 ° 72 ° 182 ° I 2 16 205 ° 229 ° From a ... Tables 31 and 32 being small ) , the following experiments by Scoresby are cited ; they relate to heavy 12 - inch ...
... TABLE 32 . Number of plates together .. Angles of torsion I 2 4 6 82 ° 8 150 ° 72 ° 182 ° I 2 16 205 ° 229 ° From a ... Tables 31 and 32 being small ) , the following experiments by Scoresby are cited ; they relate to heavy 12 - inch ...
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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