Science Tuition

Home Tuition with practical facilities 🔬🧬

Chemistry - Atomic Mass & Atomic Numbers of different molecules

Clear the concert through Practical

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.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.