Elementary treatise on electricity and magnetism : founded on Joubert's "Traité élémentaire d'électricité" (1909)
Foster, G. Carey (George Carey), Porter, Alfred William, 1863-1939, Joubert, Jules François · London : Longmans · leaf 446
Fig. 274. Fig. 275. with the disc must follow the motion of the disc. This was Aragosfirst experiment: a magnetic needle is suspended horizontallyabove a copper disc mounted on the vertical axis of a whirlingtable; when the disc is made to rotate, the needle follows itsmotion, though more slowly.…
Electricity · Magnetism
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
