re such 16 LIGHT. [CH. 1 standard candles, and by the candle power of any light ismeant the number of standard candles which will have thesame illuminating power as the light. We now proceed to describe one or two forms of pho-tometer. 13. Rum fords Photometer. EXPERIMENT (3). Todetermine the… … Fig. 10. cast shadows A, B, respectively, of the stick on the paper,placing the lights so that the two shadows are close together.The shadow A is illuminated by the gas flame B, while theshadow B receives light from the candle A. On moving thegas flame away from the paper A becomes darker, on…
Heat · Light
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