Summary
It is demonstrated that there is a flexibility in clock synchronizations and that the four-dimensional symmetry framework can be viewed broadly. A new viewpoint of the four-dimensional framework is discussed on the basis of a common time for all observers who may be in motion relative to each other. Such a common time can be realized by a special method of clock synchronization and it isnot absolute in the Newtonian sense. We suggest that the truly universal constants in physics areJ=0.35·10−37 g cm and\(\bar e\)=1.6 · 10-20 e.m.u. rather thanℏ,e (in e.s.u.) and the speed of light becauseJ and\(\bar e\) are independent of a special arrangement of the measuring apparatus—such as clock synchronizations.
Riassunto
Si dimostra che esiste una flessibilità nella sincronizzazione degli orologi e che il sistema a simmetria quadridimensionale può essere esaminato in un contesto piú ampio. Si discute un nuovo modo di vedere il sistema quadridimensionale sulla base di un tempo comune a tutti gli osservatori che possono essere in movimento l’uno rispetto all’altro. Tale tempo comune può essere realizzato con un metodo speciale di sincronizzazione degli orologi enon è assoluto nel senso newtoniano. Si suggerisce che le costanti realmente universali in fisica sianoJ=0.35·10−37 g cm e\(\bar e\)=1.6 · 10-20 e.m.u., piuttosto che ħ,e (in e.s.u.) e la velocità della luce, poichéJ e\(\bar e\) non dipendono da una speciale sistemazione del sistema di misurazione—come la sincronizzazione degli orologi.
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References
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Hsu, J.P. Questions on universal constants and four-dimensional symmetry from a broad viewpoint.—I. Nuov Cim B 74, 67–82 (1983). https://doi.org/10.1007/BF02721686
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DOI: https://doi.org/10.1007/BF02721686