Intermediate Introduction

Now day’s human beings are in constant change, searching each and every day for new things and for how to construct a developed society in which all needs and desires are fulfilled. Among the many people that search through for changes are the inventors, they try to innovate in terms of new processes, appliances, machines, medicines etc. that will to some extend constitute a help for life. This new devices, methods, or processes created are called inventions and they can be developed through science taking into account that this branch of knowledge gets to a conclusion only if the facts treated are well organized, analyzed and studied.