Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 172
hood of 20 hours. The color of the light from the flaming are is yellow when cal-cium salts are used as the main impregnating compound, and themajority of the lamps installe<| use electrodes giving a yellow light.Hy em|>loying more strontium, a red or pink light is pnxluctHl, whileif a white… … eo* so 30* VIk. 40. Distribution Curves of a Luminous Arc. \:m 44 ELECTRIC LIGHTING of the different materials. Modern electrodes contain not more than15% of added material and it is customary to find the salts appliedas a core to the pure carbon sticks. The electrodes are made of asmall diameter…
Architecture · Building
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