A kaleidoscope is a cylinder with mirrors containing loose, colored objects such as beads or pebbles and bits of glass. As the viewer looks into one end, light entering the other creates a colorful pattern, due to the reflection off of the mirrors. Coined in 1817 by Scottish inventor Sir David Brewster,[1] "kaleidoscope" is derived from the Ancient Greek καλός (kalos), "beautiful, beauty",[2] εἶδος (eidos), "that which is seen: form, shape"[3] and σκοπέω (skopeō), "to look to, to examine",[4] hence "observation of beautiful forms." [5]