Optics for Beginners. Introduction Optics is the science of light. If you know nothing about optics, this page (and those linked to it) will explain the basic facts needed to understand how mirages, green flashes, and other refraction phenomena work. A little background is required, so please be patient. Traditionally, optics is divided into two main areas: geometrical optics, which deals with how light moves and where it goes; and physical optics, which deals with the nature of light itself (which we don't need to get into here) and with the interaction between light and matter (which we will need to use a little bit). There are also several related fields, like vision, and the science of color. Two kinds of optical phenomena are involved in green flashes and mirages: atmospheric refraction atmospheric transmission Refraction belongs to geometrical optics; transmission belongs to physical optics.
Geometrical Optics Reversibility. People often talk about a “line of sight” between two points. Rays and beams. 9. Geometrical optics for beginners.
Logical Labyrinths (9781568814438): Raymond M. Smullyan. Legend. Latin. Unschool. Race and privilege. ASL. Untitled.