Abstract

One of the major topics in the physics is the survey of speed and emission of light. Most physicists believed that light required to a medium to emit into space. They proposed aether, a supposed medium permeating space that was thought to be the carrier of light waves. The Michelson–Morley experiment was an attempt to detect the existence of aether, while their results led to the rejection of this theory. After this, Albert Einstein proposed the theory of special relativity wherein the speed of light is independent of the motion of the observer and it is the same in all situations. Nevertheless, the answer to some of the questions about the emission of the light remains unanswered. The aim of this study is to consider the speed of  the  light  and  the  reason  of  its  emission  into  the  space.  This  study  presents  that  based  on  Galilean  relativity  the  space  around  matter  is  moving  with  the  speed  of  light  and  any  electromagnetic waves that formed result from vibrating charged particles obey from the space that moved with light speed.

Keywords

light speed, michelson–morley experiment, special relativity, galilean relativity, electromagnetic spectrum, visible light