Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 205
uld point east and west (i.e., at right angles to the magnetic meridian), and the needle should move with the least possible friction. The angle which the needle makes withthe horizon is called the inclination ordip. At the incignetic equator the dip is zero (or the needleis horizontal), but north… … Fig. 237.—a simpledipping needle. 232. The Earths Magnetic Field. As the earth is a great magnetit must have a magnetic field about it, and a piece of iron in that fieldshould become a magnet by induction. If an iron rod {e.g., a poker, orthe rod of a retort stand) is held nearly vertically, with…
Physics
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