KaleidoscopeThis is a toy based on the principle of multiple reflections in a pair of mirrors. Three rectangular glass strips aspect ratio of about 6 are arranged to form an equilateral triangle by the lengths abutting each other. One end is closed by a triangular glass piece. One more triangular glass piece is arranged at small distance and some colored glass pieces and beads are placed in the gap of two triangular glass pieces. Now the arrangement is wrapped in paper to hold tight together. Viewed from other end one observes beautiful patterns. Slight movement changes the patterns. At three corners hexagonal patterns are formed Construction – One need consider object, three primary images, six secondary images and three tertiary images. Thus Object + 12 images are drawn. Beyond these one has images but are faint and hence not drawn. Start with a triangle containing objects. GeoGebra has inbuilt function for reflections of object about a line. Complete all the reflections. The objects have been provided with a control point to move the object. By moving object one can make pattern change from one beautiful to next. Address your queries to vasantbarve@gmail.com Dr Vasant Barve, 11 September 2014, Created with GeoGebra |
Friday, September 12, 2014
Kaleidoscope
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