Looking at one's surrounding environment, theThe vast majority of visible objects are seen primarily by diffuse reflection from their surface. ThisExceptions holdsinclude withobjects and materials that fewreflect exceptionsspecularly, such as glass, reflective liquids, polished or smooth metals,and glossy objects, and objects that themselves emit light: the Sun, lamps, and computer screens (which, however, emit ''diffuse'' light). Outdoors it is the same, with perhaps the exception of a transparent water stream or of the iridescent colors of a beetle. Additionally, [[Rayleigh scattering]] is responsible for the blue color of the sky, and [[Mie scattering]] for the white color of the water droplets ofin clouds.
Light scattered from the surfaces of objects is by far the primary light which humans visually observe.<ref name="z">{{cite book
