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Theoria. Revista de Teoría, Historia y Fundamentos de la Ciencia

Volume 2, Issue 1, Octubre/Enero 1986/1987

Giuseppe Antoni
Pages 181-185

Un apparente paradosso relativistico connesso con le masse in moto

No paradox exists in the fact that, in the Special Relativity, for the mass of a material body, considered in motion at constant speed, whose measure is u, the formula: m = m0/√(1-u²/c²) can be written , while for a photon the same formula holds, when between its source and the observer a state of relative motion at constant speed, whose measure is u, exists and it is observed along the direction perpendicular to the direction of his speed.

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