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 822
le, and any sticking of the axle on the knife-edgesmay !>«■ prevented. To usr fche .lip circle, it is first levelled by means of the spirit- lv1 ;1 ,h levelling screws. !f is then turned about ils vertical axis until the magnel sets vertically, both ends pointing to 90°upon scale. The plane of… … FIG. 733.—The dip circle. of the needle is brought into the magnetic meridian,for this adjustment is, that when the plane ofrotation of the magnet is at right angles to themagnetic meridian, the horizontal component ofthe earths field H, being parallel to the axis ofrotation, does not produce any…
Physics
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
