Kaleidoscopes

 

— classical kaleidoscopes are toys in the form of an optical tube, inside of which there are small coloured pebbles and a special system of mirrors. When the pipe is turned, the pebbles are sprinkled, forming a certain pattern, and the mirrors repeatedly reflect it and turn it into a beautiful symmetrical ornament; All this can be observed through the eyepiece. The play of patterns in a kaleidoscope delights not only children, but also many adults.