Annals of the Astrophysical Observatory of the Smithsonian Institution (1900)
Washington : Government printing office · leaf 83
section of the water channel, and in the means of measuring the rise of temperature of the water stream. Figure 4 gives a general view of standard pyrheliometer No. 3, and figures 5 and 6 give details of the means of measuring the temperature rise in No. 2 and No. 3, respectively. Figure 7 is a… … Fig. 4.— Standard water-flow pyrheliometer No. 3. General cross-sectional view. bathes the walls and rear of the chamber and the cone-shaped receiver of rays H and passes off at F carrying the heat developed by solar rays which entered the chamber by the measured orifice C. At D: and D2 are…
Infrared spectra · Solar radiation
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