Lynde, Carleton John, b. 1872, Gilbert, Alfred C. (Alfred Carlton), 1884-1961 · New Haven, Conn. : A.C. Gilbert Co. · leaf 92
ivelayers of air which are denser the nearer they are to theearth. The direct ray SD, Fig. 138, could not be seen at A becausethe earth is in the way, but the light SB is seen because it isrefracted to A. COLOR Spectrum. When a beamof sunlight passes through aglass prism as shown in Fig.139, it is… … Fig. 139. A prism produces a spectrum from white lightFrom Lynde8 Physics of the Household,published by The Macmillan Co, 90 GILBERT BOY ENGINEERING
Light · Scientific recreations
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