In Minkowski 4-D spacetime the cooridnates of an point are (ct,x,y,z).(adsbygoogle = window.adsbygoogle || []).push({});

My question is why we multiply time with speed of light c and not some other speed v (speed of object moving in three spatial dimantions)? If we treat the time as a fourth dimension it would be more reasonable to say that (t,x,y,z) and not (ct,x,y,z).

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# Time as a fourth dimension

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