The return of Newtonian classical mechanics! In modern physics, when a particle such as an electron moving at high velocity compare to the velocity of light. Relativistic mechanics was used to replace the classical one. When “Vacuum mechanics” concept was used to modify and completing special theory of relativity. It turns out that relativistic mechanics is not something new, actually it is classical mechanics plus the effect of vacuodynamics. So Newtonian classical mechanics was survived.(See more detail in
WWW.vacuum-mechanics.com)