Instruments and methods used in radiometry - II (1913)
National Bureau of Standards · leaf 20
) were blackened, and exposed alter- Coblentz] Instruments and Methods of Radiometry 23 nately to radiation. The elements to be tested were inclosed inorder to avoid air currents. Using bismuth wire 0.15 mm in diameter, the deflection for areceiver 4 mm long was not quite twice that of a receiver 1…
Measurements and use of instruments · Thermometry, pyrometry and calorimetry · Heat flow, thermal and thermodynamic processes
Internet Archive · NIST Research Library · Public Domain Mark 1.0. Free to use for anything.