My older son asked me yesterday about how colors on the screen work. We started talking about the history of the RGB color model including early color screen technology. That eventually led to a discussion of how the RGB color space is three dimensional with 256 values on each axis for a total of 2^24 or roughly 16 million colors. Since a display is only two dimensional how would you go about showing the entire color space? From that question we talked about projections (from 3D to 2D) but al...
