Just as the conquest of an empire, the domination of energy has demanded large amounts of time, efforts, research and experimentation. The first battle won was the animal energy. Using the horse, man could move faster than using his own legs. With this animal, they shared the production of energy, water and wind. This was one of the first times, man tried to improve his work limited by his muscles.

At recent times, three energy generators were used by man, electricity, steams and motors. The mechanics slaves (gas particles and electrons) moved the machines faster and without fatigue. This was the beginning of an era where man controls the process instead of making muscular and rutinary hardwork.

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