A text-book on chemistry. For the use of schools and colleges (1866)
Draper, Henry, 1837-1882 · New York, Harper & brothers · leaf 92
^ This striking experiment proves, first, that the rays*of heat move in straight lines, like those of light; and,second, that in the same manner they are subject to theordinary laws of reflection, for the apparatus is adjustedby the flame of a candle. A variation of the experiment may be made by… … cus of the opposite mirror, M, will exhibit a reductionof temperature, even though shaded by a screen, A%from direct radiation. From this it was at one timesupposed that there exist rays of cold precisely anal-ogous to rays of heat, and that they observe the same What does the experiment of the…
Chemistry · Physics
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