A text book of physics, for the use of students of science and engineering (1918)
Duncan, John, d. 1941, Starling, Sydney George, 1873- · London Macmillan · leaf 832
pass, the deviation is east whent he magnet is west of the compass and west when the magnet is eastof the compass. But as the ship rotates, the deviation is east forHalf the rotation and, west for the other half. The direction of thedeviation is reversed if the upper end of the bar is level with… … FIG. 746.—Horizontally disposed soft iron. Although there may be many such masses of iron in a ship, theresultant effect will always give rise to a semicircular deviation. Quadrantal deviation.—When the soft iron is disposed horizontallyits effect is more complicated, as its direction of…
Physics
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