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 475
agnetic to the electrostatic ^^■^- form. The magnetic lines consist in circles round the connecting rods, while the lines of electric force and induction stretch between the two branches; each of these sets of lines vanishes in turn : the magnetic, when the balls are at their maxi-mum difference of… … 343] HERTZS EXPERIMENTS 453 then travels along it as a wave. It has already been said (341)that the velocity of propagation of energy through the ether is verygreat (3 x lO^* cm. per second), but since the period of the oscilla-tions can be made exceedingly small, it is possible for the wavelength…
Electricity · Magnetism
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.