Kaleidoscope

Kaleidoscope is an optical instrument, invented by Sir David Brewster in 1817, consisting of a cylinder with two mirrors set lengthwise inside, two plates of glass with bits of coloured glass loose between at one end and an eye-hole at the other, presents varying patterns on rotation.

Nearby pages
Kalevale, Kali, Kaliabor, Kalikinkar Dey, Kalmar, Kalmucks