2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/87543A closer look (with hindsight) at Newtonian and relativistic kinematics reveals two things. Not surprisingly, Newtonian time remains the empty and artificial - albeit useful - figment it is known to be. Quite unexpectedly however it turns out that with an only slightly more physical time-concept, time and space remain separate entities and simultaneity of events becomes a meaningful concept even for physicists.That's what I would like to get from you ! Version 2: Details added and typos correctedGeneral Physicstext