Kaleidoscope

The Kaleidoscope was invented by Scottish physicist David Brewster (1781 - 1868), the same one who showed that light could be plane-polarized by shining a beam on surface of a dielectric.

The mirrors are parallel to its axis and they are positioned at the angle of 22.5, 30 or 60 degrees one with relation to the others. Flowery images that we see are created as a result of multiplied reflection off the mirrors inside the kaleidoscope.

The name itself originates from Greek kalos (beautiful) + eidos (image) + skopéo (see).