Authors: J Kokošar
The main argument against the relativistic mass is that it does not tell us anything more than the total energy tells us, although it is not incorrect. It is shown that this is not true, because new aspects of special relativity (SR) can be noticed. One reason for this definition is to show a relation between time dilation and relativistic mass. This relation can be further used to present a connection between space-time and matter more clearly, and to show that space-time does not exist without matter. This means a simpler presentation than is shown with Einstein's general covariance. Therefore, this opposes that SR is only a theory of space-time geometry. Phenomenon of increasing of relativistic mass with speed can be used for a gradual transition from Newtonian mechanics to SR. The postulates, which are used for the definition of SR, are therefore still clearer and the total derivation of the Lorentz transformation is clearer. Such derivation also gives a more realistic example for the debate regarding Duff's claims. It gives also some counter-arguments for some details of debate about physical nonexistence of dimensionful units and quantities. These details are why three elementary units exist and why a direct physical measurement is not the only possibility for physical existence. Such derivation thus shows that relativistic mass is differently presented to us as relativistic energy.
Comments: 11 pages
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