INTRODUCTION
Engineers apply the principles of science and mathematics to develop economical solutions to technical problems. Their work is the link between scientific discoveries and the commercial applications that meet societal and consumer needs. They also use their imagination and analytical skills to invent, design, and build things that matter. They are team players with independent minds who turn ideas into reality. Many become licensed professional engineers in order to better protect the health, safety, and welfare of the public. By dreaming up creative and practical solutions, engineers are changing the world all the time.
Engineering has been called the “invisible” or “stealth” profession. Everything around us and that we use every day has been engineered in some way, yet we may not see the engineers behind the scenes or know much about engineering. Engineering is not part of our grade school education. Many engineers whose work affects the public become licensed. The engineering field is as varied as engineers themselves. Engineers can design and build superstructures or delicate medical instruments. Engineers are exploring for energy and for new worlds in space. They are designing the environmental controls for an art museum or directing global sales of today’s hottest cars and computers. The engineering is commonly divided into four major disciplines, civil, mechanical, electrical and chemical engineering. In every discipline, there are more minor or specialized engineering fields that have been used in modern world. However, it is easier for the author to categorize the major achievements and their big impact of engineering to the world with concern of different major of engineering.
BENEFITS OF ENGINEERING
Engineering has existed since ancient times as humans devised fundamental inventions such as the pulley, lever, and wheel. Each of these inventions is