Right now there's a discussion running on about #RelativisticMass and its relation to limit of the speed of light in vacuum in the TSR
As u would know m0 #MassAtRest is a constant and the m that appears in the expression E=mc^2 is the so-called #RelativisticMass
When four-vectors are built in #Minkowski space,magnitude of energy-momentum is scalar and from there expression E^2 = m0^2c^4 + p^2c^2 is deduced
Concept is useful if it is known how to apply, if not fallacies that populate TSR pop up
As u would know m0 #MassAtRest is a constant and the m that appears in the expression E=mc^2 is the so-called #RelativisticMass
When four-vectors are built in #Minkowski space,magnitude of energy-momentum is scalar and from there expression E^2 = m0^2c^4 + p^2c^2 is deduced
Concept is useful if it is known how to apply, if not fallacies that populate TSR pop up

