Abstract We disprove the claim that was published in a recent paper [1] about an absolute maximum velocity related to the value of the Planck mass for a photon-propelled rocket in vacuum. This claim is based on incorrect hypotheses and is incompatible with the theory of relativity. We also review the relative bound that can actually be derived for the velocity of such an ideal rocket, as measured in the inertial frame in which it was at rest at a given initial time.

    Highlights Results presented in a previous publication are contested. The relativistic limit on the velocity of a rocket is the speed of light. The ideal relativistic rocket equation with photon propulsion in vacuum is reviewed.


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    Titel :

    Comment on “the ultimate limits of the relativistic rocket equation. The Planck photon rocket”


    Beteiligte:

    Erschienen in:

    Acta Astronautica ; 161 ; 373-374


    Erscheinungsdatum :

    2019-01-17


    Format / Umfang :

    2 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





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