This text aims to make a first approach to the question "Why should I study Physics? that many students do. It is a personal reflection as a narrated long our ancestors were frightened and amazed by the natural phenomena occurring. These mood changes produced by these phenomena led these men to seek explanations for what happened and try to control nature and that the effects produced were sometimes catastrophic. The first explanation of what happened were surrounded by a religious environment, every phenomenon has become uncontrollable and incomprehensible a God to worship only the constant and systematic slaughter of its periodic could soothe fury. This form of control has been improved to be managed by men to deal with other men. The gods were taking more and more human forms, vengeful, punitive and segregative where only a select few understood the strength of their arguments and only through him could, with some luck, avoid the terrible effects of drift with the freedom of thought.

The senses were controlled by the gods, had given to us they should, therefore everything that was perceived by them was the work of them and there was no wrong choice, the world was what the senses perceive, was the work the creator and there was no room to doubt it. What could not be explained by understanding those with a direct link to the architect of this supreme work. But the man was endowed with thought and this was beyond the senses, imagined, dreamed, analyze, relate, he found new clues to what he saw and what he saw but understood it was there.