Merchant, F. W. (Francis Walter), 1855-1937, Fessenden, Cortez, b. 1852 · Toronto : Copp, Clark · leaf 295
Fig. Til Experiment 2. Thrust a knitting-needle and a darning-needle at rightangles to each other through a small cork. Using the darning-needle as an axis, mount the needles as shown in Fig. 232, … and adjust the knitting-needle in the cork so that it willremain at rest in a horizontal position. Magnetize the knitting- MAGNETISM. 287 needle with a strong magnet and place it again on the supportsturning it in a north and south direction with the N-seekingpole pointing to the north. 1. Describe…
Physics
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