Scientists began studying light a long time ago. The big breakthrough happened when Newton started to break light up with prisms. Only recently have scientists began to understand how light works and its connection to everything in the Universe. We're going to talk mainly about visible light and how it reacts in the real world. The thing you always need to remember is that light comes in all shapes and sizes.
Radio waves are light waves.
Television, visible light and X-rays are all related too. There are some terms with which you need to become more acquainted. Bending of the path of light from one medium to another. One particle of light. The distance from the focus to the vertex.