Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 242
are blended in different wa3s, according to LIGHT. 219 the relative arrangement of the different sections. All thephenomena of the blending of surface colors are illustratedby this simple toy. At times the center will be a fine purple,while the outer part is green. At other times some portionsof… … Chromatrope. tion to the other, the arrangement of the disks is such as topresent beautiful symmetrical figures. All the changes ofcolor in the toy in its normal condition are, of course, acci-dental. When it is desired to try the blending of any of thecolors, when arranged in a particular way, the…
Physics · Lantern projection · Electric apparatus and appliances
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-401-176.webp)
