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The One-Way Speed of Light

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When Einstein developed his Special Theory of Relativity, he assumed that light travelled at the same speed between two points no matter which direction it was moving in. But is that really the case, and would the Universe look any different if it were not?

͑ a ͒ Schematic diagram of the experiment to determine the one-way

Measuring the speed of light one way with one clock and two photons. : r/Veritasium

One-way speed of light - Wikipedia

There's Only One Way To Beat The Speed Of Light, by Ethan Siegel, Starts With A Bang!

Is it possible to deduce the one-way speed of light by counting the frequency and multiplying by the wavelength of the incoming light? - Quora

RSR's One-Way Speed of Light Experiment Proposal

Can we measure one-way speed of light?

spacetime - Can someone please tell me the problem with this method to measure one-way speed of light? It's driving me crazy! - Physics Stack Exchange

Wisp Unification Theory - almost the theory of everything

Speed of light - Wikiwand

The One-Way Speed of Light. Speed of light experiments measure the…, by The Physics arXiv Blog, The Physics arXiv Blog

Testing light speed invariance by measuring the one-way light speed on Earth - ScienceDirect

special relativity - Did Ole Rømer measure the one-way speed of light or the two-way speed of light? - Physics Stack Exchange

Is the concept of a one-way speed of light meaningful and measurable?

There's no way to measure the speed of light in a single direction