Non-Invariant Velocity of Light and Clock Synchronisation in Accelerated Systems

TL;DR

This paper challenges the conventional understanding of clock synchronization in accelerated systems, demonstrating that Einstein's synchronization fails in rotating frames and discussing implications for precise Earth-based synchronization.

Contribution

It shows that Einstein's clock synchronization is inadequate in accelerated systems like rotating platforms, highlighting the need for alternative synchronization methods.

Findings

Einstein synchronization fails in rotating frames

The Sagnac effect cannot be explained by Einstein synchronization

Implications for precise Earth clock synchronization

Abstract

Clock synchronisation is conventional when inertial systems are involved. This statement is no longer true in accelerated systems. A demonstration is given in the case of a rotating platform. We conclude that theories based on the Einstein's clock synchronisation procedure are unable to explain, for example, the Sagnac effect on the platform. Implications on very precise clock synchronisation on earth are discussed.