Everything that we see around us is dependent on some sort of technology and this expertise is gained through the body of knowledge, called science. All the devices that we around us along with the whether it is the simplest of machine, i.e. wheel or the most complex one, has undergone certain changes over a period of time and they will continue to do so. The ones who plan and carry out these developments and advancements are called engineers.
All types of equipments, machines, gadgets, infrastructures and devices are built, maintained, updated and upgraded through the science of engineering. This science has further been divided into various fields for specialization and focused effect on its progress.