A course of experiments in physical measurement (1897)
Whiting, Harold, d. 1895 · Boston, D.C. Heath and Co. · leaf 449
rrents created by athermopile (Exp. 39), is repre-sented in Fig. 207, and may beconstructed as follows : — Two magnetized needles, o andA (Fig. 208), of nearly equalstrength are connected by a ver-tical piece of wire, with theirnorth poles in opposite directions,and suspended horizontally, by afine… … a (^ ■ « _c
Physics
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