Elementary treatise on physics, experimental and applied : for the use of colleges and schools (1906)
Ganot, A. (Adolphe), 1804-1887, Atkinson, Edmund, 1831-1901, Reinold, A. W. (Arnold William), 1843-1921 · New York : Wood · leaf 436
of reflection. Two concave sphericalreflectors, M and N (fig. 407), are arranged at a distance of 4 to 5 yards, andso that their axes coincide. In the focus of one of them, A (see Light, ch. ii.),is placed a small wire basket containing a red-hot iron ball. In the focus ofthe other is placed B, an… … Fig. 407 N, are reflected so that they coincide in the focus B. That this is so, is provedby the fact that the gun-cotton at this point takes fire, which is not the caseif it is above or below it. The experiment also serves to show that light andheat are reflected in the same manner. If the hot…
Physics
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