Elementary treatise on electricity and magnetism (1903)
Foster, George Carey, 1835-1919, Joubert, Jules François, 1834-1910. Traité élémentaire d'électricité, Porter, Alfred William, 1863- joint author · London, New York, Longmans, Green, and co. · leaf 569
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 shoit 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 · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
