Gilbert light experiments for boys . Fig. 139. A prism produces a spectrum from white lightFrom Lynde8 Physics of the Household,published by The Macmillan Co, 90 GILBERT BOY ENGINEERING. Fig. 140. A spectrum recombined to produce white light White Light made up of all Colors. The experiment aboveshows that white light is made up of lights of all primary colors. This is proved againby passing the spec-trum through a prismturned in the oppositedirection (Fig. 140);the colors are recom-bined to produce whitelight. It can be provedalso by turning theprism back and forthquickly (Fig. 141).The color

---

Gilbert light experiments for boys . Fig. 139. A prism produces a spectrum from white lightFrom Lynde8 Physics of the Household,published by The Macmillan Co, 90 GILBERT BOY ENGINEERING. Fig. 140. A spectrum recombined to produce white light White Light made up of all Colors. The experiment aboveshows that white light is made up of lights of all primary colors. This is proved againby passing the spec-trum through a prismturned in the oppositedirection (Fig. 140);the colors are recom-bined to produce whitelight. It can be provedalso by turning theprism back and forthquickly (Fig. 141).The colors overlap atthe center and pro-duce white light. Dispersion. Youknow that light is re-fracted or bent when

---

Size: 2304px × 1085px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1920, booksubjectscientificrecreation