When you mix red and green, what do you get? White light is all of the colors, right? So, how do computer screens show you every wavelength of light? Or do they? Only some humans can see this type of light https://www.youtube.com/watch?v=CSu0cV3fqi8 Singing this Note is IMPOSSIBLE! https://www.youtube.com/watch?v=F64xcPKKES8 https://instagram.com/thephysicsgirl https://twitter.com/thephysicsgirl https://facebook.com/thephysicsgirl https://physicsgirl.org/ Help us translate our videos! null Host/Writer: Dianna Cowern Editor: sefdstuff.com/science Physics Girl has joined PBS Digital Studios! null RGB Image: Luís Flávio Loureiro dos Santos, https://commons.wikimedia.org/wiki/File:LCD_RGB.jpg