Introduction - observation can give false picture of the reality

While watching our surroundings we can notice a number of curious facts:


Stars are moving along circles Planets are moving along complicated trajectories The Sun and the Moon are moving along arcs	Dimensions of the fast-moving frames are being deformed
Our ancestors assumed that the observed, complicated trajectories ARE THE TRUE TRAJECTORIES the heavenly bodies are really moving along in the Universe	Currently we are assuming that the observed dimensions, deformed during motion, ARE THE TRUE DIMENSIONS creating the reality in which we actually live
Today we know that it was a mistake.	Today I will let you know that it is a mistake.
In the Relativity Theory we are doing now the same mistake, which did our ancestors hundreds years ago namely we are assuming that the reality is just as we can observe it