Martin, L. C. (Louis Claude), Gamble, William · London, Blackie · leaf 65
COLOUR IN REGARD TO ILLUMINATION 41 It is found that the characteristics of the radiation depend solely on the temperature of the radiating body, and not at all on the wave-lengths or other characteristics of the radiation which may have been previously absorbed. Lummer and Kurlbaum's Experiments.… … Wave Length Energy of Light Sources. — Al- Fig. 18 -Energy and Wave-length though in some cases artificial light sources do not act entirely like perfect radiators, yet the similarity is sufficiently close to enable an estimation of the differences in radiation to be made. Table 6 in the Appendix,…
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