A wavelength meter in motion is proposed to test directly the invariance of c as postulated by the Special Relativity, which is the first time this experiment is attempted. Until now it was assumed aether, if it was found, was a static substance having a unique reference frame from which entities were traveling through and therefore must not be present if tests proved otherwise. If we replace aether with graviton fields overlapping each other then we will have a reference frame that follows the rotation of the Earth. Thus to detect its presence, we will have to physically move against that rotating frame in order to detect a change in speed of light. This is done by sending a laser beam in the same direction of the velocity vector of the moving apparatus, capturing the difference in wavelength as we will demonstrate in this proposal.
