Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 350
s the first to ex-amine in a really scientific way the dispersion produced by aprism, and Fig. 401 illustrateshis method of experimenting.Ho admitted sunlight through ahole in a window-shutter, andplaced a s^lass prism in the pathof the beam. On the oppositewall, 181 feet from the prism,lie… … G. 401.—Light enters through a hole inthe window-shutter, passes through aprism and is received on the oppositewall. This image Newton called the spectrum. On careful inspection he thought he could recognize seven distinct colours, whicli he named in order:—red, orange, yellow, green, blue, indigo,…
Physics
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