Abstract

There are well-established facts whose validity is beyond any doubt, such as the fact that 2 + 2 = 4 or the fact that, say, a lamp that can only flash once in its entire lifetime can only flash at a given coordinate x and at a given time t in a given system O. Such lamp cannot flash at a given moment t at two different coordinates x in this system O. A theory is physically inconsistent if it leads to conclusions which contradict such well-established facts. In this text arguments are given which show that STR leads to conclusions which are in contradiction with well-established facts and therefore it is physically inconsistent.