Add Yahoo as a preferred source to see more of our stories on Google. You perceive electromagnetic radiation in the form of light in all the colors of the rainbow. MirageC/Movement via Getty Images ...

Originally setting out to design safety glasses for use during laser surgeries, materials scientist Don McPherson instead designed a lens that enables color-blind wearers to see the full light ...

White light can be blinding, cold, unforgiving. Our physical reality often finds it too much as well, splitting it apart any chance it gets. Plants are green because such wavelengths of light help it ...