Kikkerland Newton Laboratory Color Disc Color Palette Painting Disc Children's Color Perception

Newton's disk, also known as the vanishing color disk, is a famous physics experiment in which a rotating disk has fragments of different colors (usually Newton's primary colors: red, orange, yellow, green, blue, Indigo, violet or ROYGBIV, which usually appear white, gray or off-white when rotating very fast). This type of light stimulus mixing is called temporal optical mixing, a type of additive averaging. The concept that human visual perception cannot distinguish details of high-speed motion is colloquially known as persistence of vision. The disc is named after Isaac Newton. Although he published a diagram of a circle containing segments of the primary colors he discovered, it is uncertain whether he actually used a spinning disc to demonstrate the principles of light.