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 613
een recently discovered or have recently come intoprominence. 481. Cathode Stream.—We have seen that when an electricdischarge takes place in a tube containing air at a pressure of lessthan a millimetre of mercury the appearance at the negativeterminal consists of a blue glow close to the terminal,… … Fig. 369. of bluish light a (Fig. 369) can often be seen proceeding in straightlines normally from the surface itself. If the terminal is a smalldisc or a short thick electrode surrounded, except at its end, by aclosely fitting glass tube a nearly parallel beam is obtained; if,however, a concave…
Electricity · Magnetism
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
