Movement presupposes matter, for if there is movement then there must be something which is moved. Light which has a speed of (c) has a definite movement, so it follows that there must be matter moving during the passage of light.

. Light has frequency and wavelength so it is one of the wave phenomena. All wave motions have a medium or mediums through which they are propagated, and any substance in which a wave can be detected is a medium for the propagation of that wave. Light can be detected in air, water, glass, and various other substances so they are therefore mediums for the passage of light, to be concise, all transparent substances are mediums for the transmission of light.

The property or properties which are necessary for the propagation of light through a substance will be common to all transparent substances. The examination of all transparent substances, looking for similar properties, reveals there is at least one property they all have in common, and that is they are all insulators. It is significant that light which is an electric wave, only moves through electrical insulators. It is also significant because there already exists in the radio industry a theory to account for the passage of radio waves through the dielectric of a capacitor . Radio waves are the same type of wave as light and the dielectric of a capacitor is an insulator, so a theory to account for the passage of light already exists.

The theory is, that as one plate of a capacitor becomes positive, in the insulator, the electrons in their orbits become strained towards the plate and their orbits become elliptical, with the major axis pointing towards the plate. When the plate swings negative, the electrons are repelled and their orbits return to normal and then become elliptical, with the major axis pointing away from the plate. The electrons in their orbits swinging back and forward are the radio waves, in light, in the shining object, the electrons jumping from ground to excited orbits have the same effect on the medium surrounding the object.

The earth and other objects in space which have a spinning motion, have a whirlpool or whirlwind effect on the medium through which light is propagated in space. The gravitational force of the earth holds the medium at rest with its surface, but the further out from the earth the gravitational effect gets less and less until at a distance the earth has no effect. This accounts for the results of the Michealson-Morley experiment and predicts a different result if an experiment was placed in orbit where it would be passing through the medium.