The Architect & engineer of California and the Pacific Coast (1905)
San Francisco, Calif. : Architect and Engineer Co · leaf 479
g the output of a lamp the candle-power, as usually ex-pressed, is not of much benefit. The mean spherical candle-power will givea better idea, while the lumens per lamp or per watt is the accepted standard.\\e can measure in lumens not only the output of the lamps, but also theflux of light… … CURVf.5 SHOWING PROPORTIOWATt T?ADIATIOM Or VARI-OUS WAVE. LEMaTH5 AT INDICATED TEMPtRATURt5 OF INCANDtSCtNT 50LID3. Cbas.TPk.Hips, Consul*Irr^ Zr7qir7ee
Architecture · Building
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