Engineering is the application of science, empirical evidence, mathematics, practical knowledge and social knowledge to innovate, maintenance, design and improve machines, tools, systems and structure. Discipline of the engineering will cover more specialized fields of the engineering activates. The term engineering is basically derived from Latin and it plays an importance role in each field. According to the studies says that engineers are key shortage in the power, telecommunication and so on. The main role of the engineer is to protect environment and people within it. Engineering is the broad discipline that is broken into the certain sub disciplines. Engineer mostly trained in the specific discipline but they are often characterized into the four main branches such as electrical engineering, civil engineering, chemical engineering and mechanical engineering.
Basically chemical engineering is the application of the chemistry, physics, biology and engineering principles to carry out the chemical. At the same time civil engineering are the construction and design of the private and public works such as bridges, tunnels, dams and buildings. In general, civil engineering is broken into the numbers of sub disciplines such as environmental engineering, structural engineering and surveying. But it is considered to be separate from the military engineering. On the other hand, electrical engineering is the study, design and manufacture of the different kinds of electronic and electrical systems such as electrical circuits, generators and motors. Most of the studies say that engineering is derived from word engineer and it referred to the constructor of the military engines. Design of the civilian structure like buildings and bridges is called as the civil engineering. Foundation of the electrical engineering introduced in the year of 1800. Basically aeronautical engineering deals with the aircraft design process. Aerospace engineering is the modern term that may expand reach of discipline which includes spacecraft design.