Foundations of Physics

, Volume 7, Issue 9–10, pp 769–782 | Cite as

Round-trip clock retardation and the conventionality of simultaneity

  • Laurent A. Beauregard


A synchrony-free, velocity-independent formulation of the Lorentz transformation is derived in a very simple manner with the help of thek-calculus. The dependence of the well-known relativistic effects on the choice of simultaneity metric is put forth, and the significance of the possibility of eliminating these effects is explored. This leads to a simple analysis of the clock paradox, or round-trip clock retardation. The doctrine of the conventionality of simultaneity is brought to bear on the interpretation of this effect. It is argued that such a round-trip effect constitutes a physical realization not only of the conventionality of simultaneity but of that of temporal congruence as well. Some physics perhaps vindicates a little philosophy.


Relativistic Effect Physical Realization Lorentz Transformation Simple Analysis Simple Manner 
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Copyright information

© Plenum Publishing Corp 1977

Authors and Affiliations

  • Laurent A. Beauregard
    • 1
  1. 1.Department of PhilosophyReed CollegePortland

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