Newton disc
Coloured disc that appears grey when rotated / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Newton disc?
Summarize this article for a 10 year old
The Newton disc, also known as the disappearing colour disc, is a well-known physics experiment with a rotating disc with segments in different colours (usually Newton's primary colours: red, orange, yellow, green, blue, indigo, and violet, commonly known by the abbreviation ROYGBIV) appearing as white (or off-white or grey) when it's spun rapidly about its axis.
This type of mix of light stimuli is called temporal optical mixing, a version of additive-averaging mixing.[1] The concept that human visual perception cannot distinguish details of high-speed movements is popularly known as persistence of vision.
The disc is named after Isaac Newton. Although he published a circular diagram with segments for the primary colours that he had discovered (i.e. a colour wheel), it is unlikely that he ever used a spinning disc to demonstrate the principles of light. He actually referred to the mixture of colours painted on a spinning top as "dirty" and described several different experiments that support his theory.
Transparent variations for magic lantern projection have been produced.[2]