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Newton's Color Disc, also known as Newton's Color Wheel, is a fascinating scientific device that demonstrates the color spectrum's blending and separation principles. This device consists of a circular disc divided into segments, each painted with a different color of the visible spectrum (red, orange, yellow, green, blue, indigo, and violet). When the disc is spun rapidly, the colors blend into one another due to the persistence of vision, creating the visual perception of white or light gray. This phenomenon illustrates Isaac Newton's discovery that white light is composed of various colored lights. Newton's Color Disc underscores the fundamental principles of color theory and the behavior of light, providing a hands-on experience for exploring the blending of colors and the concept of additive color mixing. It serves as an educational tool in physics and art classes to explain how colors combine and the nature of light, offering insights into the complex interplay between light, color, and human perception.