Engineering is the application of scientific knowledge for solving problems in the real world. While science (physics, chemistry, biology, etc.) allows us to gain an understanding of the World and the Universe, Engineering enables this understanding to come to life through problem solving, designing and building things. The electronic device you are using to read this article was engineered from raw plastic, metal, silicon and lines of software code before being transformed into a usable device. Mechanical engineering is the discipline that applies engineering, physics, and materials science principles to design, analyze, manufacture, and maintain mechanical systems. It is a branch of engineering that involves design, production, and operation of machinery. Engineers can be distinguished from other professions by their ability to solve complex problems and implement solutions in cost effective and practical manner. This ability to face a problem, work through various thoughts and abstract ideas and then translating them into reality is what is so exciting about engineering..