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Exploiting a Built-In Simultaneity: Perhaps, the Simplest Way to Show that the One-Way Speed of Light is Measurable in Principle

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  • Gianfranco Spavieri

Abstract

We consider a physical system composed of a rod of length AB = L rotating uniformly. Two points on the rod cross-sections at A and B are connected in a way that reflects the simultaneity built-in into the system. This preset simultaneity can be exploited to synchronize two distant clocks, one at A and the other at B, with an internal procedure that, in principle, may differ from Einstein synchronization. The natural built-in simultaneity can be used for testing the one-way light speed and Lorentz invariance. PACS: 03.30.+p, 42.25.Bs, 45.50.−j.

Suggested Citation

  • Gianfranco Spavieri, 2024. "Exploiting a Built-In Simultaneity: Perhaps, the Simplest Way to Show that the One-Way Speed of Light is Measurable in Principle," European Journal of Applied Physics, European Open Science, vol. 6(6), pages 14-18, October.
    • Handle: RePEc:epw:physic:v:6:y:2024:i:6:id:11349
    DOI: 10.24018/ejphysics.2024.6.6.349
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    1. Gianfranco Spavieri, 2021. "Light Propagation on a Moving Closed Contour and the Role of Simultaneity in Special Relativity," European Journal of Applied Physics, European Open Science, vol. 3(4), pages 48-53, July.
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