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 166
sts (the Faraday dark space).As the pressure of the gas is made still smaller the striae disappear,the luminosity of the positive column decreases, while a second darkspace (the Crookes space) is seen to separate the velvet glow from thenegative terminal; the size of this space increases as the… … 144 EFFECTS OF THE DISCHARGE [94- Faraday space. At the same time, especially if the terminal beconcave, a stream of blue light (or green light if the gas is ladenAvith mercury vapour) emanates in straight lines from the electrode,traverses the dark space and negative glow, and excites…
Electricity · Magnetism
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