Does One-Way Speed of Light is Constant?

Abstract

In all measurement methods, the back and forth motion of light in one-way speed theoretically used in two different assumptions first, when the speed of light is not constant and the second when the speed of light is constant. We measured the speed of light only in one-way direction and according to these measurements, found that the speed of light, does not behave as constant velocity and therefore the special theory of relativity and consequently constancy of the speed of light is not to be true.

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