I'm not sure what this HA tutorial is, but check if they're using the fixed-point versions (generally with a x suffix instead of f ) of the various OpenGL ES functions. If so, remember that the OpenGL ES fixed-point format is S15.16, so 65536 maps to 1.0f or thereabouts.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.