themaximum shifting toward the short wave-lengths with rise intemperature. The extraordinary rapidity which characterizes thegrowth of the emissivity at 1.5 to 2/jl is worthy of notice. In onecase where the ratio of emissivities at 4.3/x, for a given increase inenergy, is 50, it is almost 200 at… … 4 5 WAVE LENGTH 166 Bulletin of the Bureau of Standards. \voi.5,no.2. supplied was 8.6 watts and 13.3 watts. Curves a and h, Fig. 3.]The original crystal, as well as the glass rod, were perfectly trans-parent. The rod showed no color on suddenly throwing off thecurrent. The platinum terminals…
Rays and radiation · Light reflection · Spectra
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