This may sound like a daft question, considering a filter would be the easiest way to make this change. However, I was wondering if white light could be changed into blue light by manipulating scattering, or something like that? I am NOT a physicist and I have barely grasped the fundamentals of light so please correct me if my knowledge of the technicalities are wrong.
If the sky appears blue because blue light is scattered more than other colors, then why is the light that comes through the window during the day not distinctly blue? Would there be a way of achieving a blue light stream, without using a filter that blocks out other wavelengths? So for instance, a hollow glass cube that contains certain particles? Would it do anything to have this cube packed with nitrogen, for example?