Henderson, C. Hanford (Charles Hanford), 1861-1941, Woodhull, John F. (John Francis), 1857-1941 · New York, D. Appleton and company · leaf 211
cup besmoked on one side, filledwith hot water and held nearthe radiometer, we may show,by turning the cup about, thatthe blackened side radiatesmore heat than the brightmetal side. We may nowcover the bright metal sidewith white paint and showthat it radiates as well aslampblack. The power… … Fig. 112.—Eadiometer. CHAPTEE XXI CALORIMETRY AND SPECIFIC HEAT 205. Measurement of Heat.—Heat, like all forms of en-ergy, is a measurable quantity. The process of measuringheat is one of great scientific and practical importance.We may measure either of the two aspects of heat that wehave…
Physics
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