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RGB Additive Color Mixing Demo: three LEDs projected onto a translucent screen demonstrate the additive nature of our perception of colored light. Three potentiometers allows the user to adjust the intensity of each color. Mixing Red, Green, and Blue to create Yellow, Magenta, and Cyan with the following mixings: R G=Y, G B=C, and R B=M. Adding all three R G B produces White. RGB color addition is the basis for all computer and TV displays- all the colors you are looking at right now on your scr