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 576
... deflection . The method by Torsion : The torsion balance has been described on page 441 ; the principle and mode of ... deflect it to any angle 0 , the circle B must be turned in azimuth to some angle 4 , Fig . 372 ; the angle of torsion ...
... deflection . The method by Torsion : The torsion balance has been described on page 441 ; the principle and mode of ... deflect it to any angle 0 , the circle B must be turned in azimuth to some angle 4 , Fig . 372 ; the angle of torsion ...
Page 577
... deflection , since , for the same magnet at the same time and place , m'.l.H is practically constant . H H O 19 B Q FIG . 372 . When the needle is balanced between the force of torsion and that of the Earth's magnetism , we have or , m ...
... deflection , since , for the same magnet at the same time and place , m'.l.H is practically constant . H H O 19 B Q FIG . 372 . When the needle is balanced between the force of torsion and that of the Earth's magnetism , we have or , m ...
Page 578
... Deflection the Tangent method : The method by de- flection , on the contrary , is expeditious , easy , and sus- ceptible of great accuracy : its analytical investigation has been given in connection with Figs . 272 and 274 , and its ...
... Deflection the Tangent method : The method by de- flection , on the contrary , is expeditious , easy , and sus- ceptible of great accuracy : its analytical investigation has been given in connection with Figs . 272 and 274 , and its ...
Page 580
... 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 ' R F E R K T FIG . 375 . gent of ...
... 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 ' R F E R K T FIG . 375 . gent of ...
Page 581
... deflection , and 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 ...
... deflection , and 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 ...
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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