Abstract
MAY I suggest an alternative approach to this problem making use of the Fitzgerald–Lorentz contraction? Consider as before a pair of twins, one of whom (Traveller) makes the pilgrimage to Alpha Centauri, four light years away, and the other (Stayathome) does not. Before starting they set up identical crystal-controlled short-wave transmitters by means of which they can follow each other's progress and, with suitable frequency-dividers, operate their clocks.
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FREMLIN, J. Relativity and Space Travel. Nature 180, 499–500 (1957). https://doi.org/10.1038/180499a0
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DOI: https://doi.org/10.1038/180499a0
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