Church, A. H. (Arthur Herbert), 1834-1915 · London : Cassell · leaf 39
21 RECOMPOSITIOX OP WHITE LIGHT. Chop. II. J will be re-formed : the apparatus is shown in Fig. 6. Or again, we may by a second ])risin, in a reversed posi- tion, re-join the colours separated by a first prism, and exactly undo its effect, again producing white. It a space be left between the… … s, as it enters the first ]jrism, and as it leaves the second prism as the re-constituted white beam, E. § 20. Another mode of re-uniting colours so as to form white was suggested by Newton. A disc (Fig. 8), so mounted upon a multiplying wheel as to admit of
Color
Internet Archive · Gerstein - University of Toronto · Public domain (published before 1931). Free to use for anything.
