How to Solve the Clock Synchronization Problem to Measure the One-Way Speed of Light and Change a Second-Order Experiment to First-Order

Measuring the one-way speed of light is deemed impossible because it requires synchronizing distant clocks which in turn depends on the one-way speed of light. The constancy of the one-way speed of light in the Special Relativity theory is therefore an assumption that is not based on any direct experimental evidence. In this paper a new method to synchronize distant clocks and measure the one-way speed of light at the same time is explained. Traditionally, clock synchronization and one-way speed of light measurement are seen as two separate procedures. This paper reveals a novel yet simple way to turn a second order (time-of- flight) light speed experiment into a much more sensitive first-order experiment.