The Boston school compendium of natural and experimental philosophy .. (1837)
Parker, Richard Green, 1798-1869 · Boston : Marsh, Capen & Lyon · leaf 160
3. Of what is light composed? How can these rays beseparated. By whom was this discovery made? 374. What is a prism i Howmay a prism be mado? 375. How many colors enter into the composition of light ?What are they ? Do these rays all have the same degree of refrangibility ? 376.What takes place… … fall on the lowest part of the screen, and the remaining colors arearranged in the order of their refraction* If the colored rays, which have been separated by a prism, fallupon a convex lens, they will converge to a focus, and appearwhite. Hence, it appears, that white is not a simple color, but…
Physics
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