01 January 1970 58 3K Report

According to special relativity [1], the mass of a moving object is generally considered to be a relative value that increases with velocity [2]. m=γm0, γ is the relativistic factor and m0 is defined as the rest mass. The mass-energy equation E=mc^2 is a derivative of Einstein's special relativity. Einstein assumed two inertial systems moving at relatively constant velocity, where one object in the stationary inertial frame radiates photons in two opposite directions, and if the total energy of the photons is E, then in the other inertial frame it is seen that the mass of the object will decrease by E/c^2, i.e., E=mc^2. He thus concluded that The mass of an object is a measure of the energy it contains [3].

Our question is, if there is no absolute spacetime and the mass of any object in an inertial system can be considered as a rest mass, if it arbitrarily changes its speed of motion and is able to measure itself, will there exist a minimum rest mass, i.e. a minimum energy?

[1] Einstein 1905r:On the electrodynamics of moving objects.

[2] Feynman, R. P. (2005). The Feynman Lectures on Physics(I).

[3] Einstein 1905s:Einstein, A. (1905). "Does the inertia of a body depend upon its energy-content." Annalen der Physik 18(13): 639-641.

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