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 563
... is wrapped in the darkness of the shades of night , and they are ignorant to what part of the horizon the prow is directed , place the needle over the magnet , which is whirled round in a circle RECORDS DURING THE CHRISTIAN ERA . 563.
... is wrapped in the darkness of the shades of night , and they are ignorant to what part of the horizon the prow is directed , place the needle over the magnet , which is whirled round in a circle RECORDS DURING THE CHRISTIAN ERA . 563.
Page 564
... circle , until , when the motion ceases , the point of it ( the needle ) looks to north . " In the Paris Library there is an Arabian manuscript written in 1240 A.D. by Bailac Kipdjatie , in which a more definite description of the ...
... circle , until , when the motion ceases , the point of it ( the needle ) looks to north . " In the Paris Library there is an Arabian manuscript written in 1240 A.D. by Bailac Kipdjatie , in which a more definite description of the ...
Page 565
... circle and lubber's point- nothing but a needle lying in the magnetic meridian- can be called a compass ) seems to be anterior to 1200 A.D .: after this , descriptions multiply , so that it would be bur- densome to quote them - they ...
... circle and lubber's point- nothing but a needle lying in the magnetic meridian- can be called a compass ) seems to be anterior to 1200 A.D .: after this , descriptions multiply , so that it would be bur- densome to quote them - they ...
Page 566
... circle graduated to degrees , provided with cross - arms , fitted with notches or sight bars : when held vertically , the cross pieces could be pointed to the horizon and to the sun and thus a rough altitude of the latter obtained ...
... circle graduated to degrees , provided with cross - arms , fitted with notches or sight bars : when held vertically , the cross pieces could be pointed to the horizon and to the sun and thus a rough altitude of the latter obtained ...
Page 576
... circle C turned into the magnetic meridian - previously found with the magnet NS sus- pended . The copper bar is now replaced by a needle : it settles into the magnetic meridian , and to deflect it to any angle 0 , the circle B must be ...
... circle C turned into the magnetic meridian - previously found with the magnet NS sus- pended . The copper bar is now replaced by a needle : it settles into the magnetic meridian , and to deflect it to any angle 0 , the circle B must be ...
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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