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 579
... distance in inches ( E ) , or centimeters ( F ) , trom center to center of needle and magnet . The procedure of test is this : all iron being removed from the instrument and its vicinity , it is leveled and adjusted at right angles to ...
... distance in inches ( E ) , or centimeters ( F ) , trom center to center of needle and magnet . The procedure of test is this : all iron being removed from the instrument and its vicinity , it is leveled and adjusted at right angles to ...
Page 580
... distance decided upon for all needles of the same length ; one of these is 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 ...
... distance decided upon for all needles of the same length ; one of these is 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 ...
Page 581
... distance ; that is , n's ' = 30 mm . , ns = 10 mm . , 0 = 25 ° , and AB = 90 mm . , or the distance from center to center of needle ns and magnet n's ' is three times the length of the latter . The directive force of the Earth's ...
... distance ; that is , n's ' = 30 mm . , ns = 10 mm . , 0 = 25 ° , and AB = 90 mm . , or the distance from center to center of needle ns and magnet n's ' is three times the length of the latter . The directive force of the Earth's ...
Page 582
... DISTANCES OF B FROM A. But now consider Fig . 374 , where the same needle is at B , but deflecting a much shorter magnet at A - only 10 mm . long , and hence AB is nine times the length of n's ' ; 0 remains the same . Considering the ...
... DISTANCES OF B FROM A. But now consider Fig . 374 , where the same needle is at B , but deflecting a much shorter magnet at A - only 10 mm . long , and hence AB is nine times the length of n's ' ; 0 remains the same . Considering the ...
Page 583
... Distance from deflected needle 24 in . 4 lengths of magnet . TORSION METHOD . Relative Degrees of Relative Magnetic Mean Deflection . Tangent . Magnetic Torsion Strength . Strength . No. 1 = 100 . No. 1 100.1 ( 1 ) ( 2 ) ( 3 ) ( 4 ) ( 5 ) ...
... Distance from deflected needle 24 in . 4 lengths of magnet . TORSION METHOD . Relative Degrees of Relative Magnetic Mean Deflection . Tangent . Magnetic Torsion Strength . Strength . No. 1 = 100 . No. 1 100.1 ( 1 ) ( 2 ) ( 3 ) ( 4 ) ( 5 ) ...
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 cosē 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 sinē 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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