Technology and engineering
CITE
We have made every effort to follow citation style rules, but there may be some minor differences. If in doubt, please refer to the appropriate citation style manual.
Engineering. (2026). In Q-files Encyclopedia, Technology, Technology and engineering. Retrieved from
https://www.q-files.com/technology/technology-and-engineering/engineering
"Engineering." Technology, Technology and engineering, Q-files Encyclopedia, 12 Mar. 2026.
https://www.q-files.com/technology/technology-and-engineering/engineering.
Accessed 21 Sep. 2026.
Engineering 2026. Technology, Technology and engineering. Retrieved 21 September 2026, from
https://www.q-files.com/technology/technology-and-engineering/engineering
Technology, Technology and engineering, s.v. "Engineering," accessed September 21, 2026.
https://www.q-files.com/technology/technology-and-engineering/engineering
Engineering
Engineering is the application of science and mathematics to the design and construction of structures, machines, materials, devices and systems. There are four main branches of engineering: chemical engineering, civil engineering, electrical engineering and mechanical engineering. Nowadays, engineers work in a wide range of specialized areas, not just these four. To find out how well their designs perform to their specifications (and that they will not cause any harm), engineers sometimes build scale models or prototypes, and carry out computer simulations before going to full-scale production. Testing ensures that the materials, components or systems used in the design will not fail.
Engineers today
Aerospace engineers design, test, and supervise the manufacture of aircraft, spacecraft and missiles. Those who work with aircraft are called aeronautical engineers; those working with spacecraft are astronautical engineers.
Agricultural engineers apply their knowledge of engineering technology and science to agriculture. They design agricultural machinery, equipment, sensors, processes and structures, such as those used for crop storage.
Bioengineers (or biological engineers) combine their knowledge of biology with the tools of engineering to create useful products, for example, modifying bacteria in some way to produce certain chemicals. The field of bioengineering overlaps with biotechnology and biomedical engineering.
Biomedical engineers combine their knowledge of biology and medicine with engineering principles and practices. They develop products such as artificial organs, prostheses (artificial devices that replace missing body parts) and a range of specialized instruments, including imaging systems such as magnetic resonance imaging (MRI) scanners, as well as devices for automating insulin injections, for controlling body functions, etc.
Chemical engineers apply the principles of chemistry to solve problems involving the production or use of chemicals. They design equipment and processes for large-scale chemical manufacturing. Chemical engineers also work in other manufacturing industries, such as those producing energy, food, clothing and paper.
Civil engineers design and oversee the building of infrastructure—for example, airports, roads, railways, water supply and sewage systems, bridges, tunnels, dams and buildings. Civil engineering includes structural engineering and surveying.
Computer hardware engineers develop, test, and oversee the manufacture and installation of computer hardware, including computer chips, circuit boards, computer systems, keyboards, routers and printers.
Computer software engineers design, write, test and document computer programs in a planned way, making sure they do what they are supposed to, do not go wrong, and work as quickly as possible.
Electrical engineers develop electrical equipment, including electric motors, machinery controls, lighting, wiring, generators, electrical systems of vehicles and aircraft.
Electronics engineers develop global positioning systems (GPS), electronic equipment such as broadcast and telecommunications systems, control systems for aviation (called avionics), radar and navigation systems.
Environmental engineers use the principles of biology and chemistry to develop solutions to environmental problems, including water and air pollution control, recycling, waste disposal and related public health issues.
Health and safety engineers apply their knowledge of engineering to identify and measure potential hazards, such as the risk of fires or the dangers involved in handling toxic chemicals.
Industrial engineers are concerned primarily with increasing productivity through technology. To maximize efficiency, they design management control systems, manufacturing and information systems.
Marine engineers develop ships, boats and related equipment. They work on propulsion, steering and other systems.
Materials engineers develop materials used to create a wide range of products. They work with metals, ceramics, plastics, semiconductors and composites to create new materials that meet certain requirements. Most specialize in a particular material. For example, metallurgical engineers specialize in metals such as steel, while ceramic engineers develop ceramic materials (for example, porcelain and glass) and make them into useful products.
Mechanical engineers develop tools, engines, machines and other mechanical devices. Mechanical engineering is one of the broadest branches of engineering. Mechanical engineers work on electric generators, internal combustion engines, turbines, refrigeration and air-conditioning equipment, machine tools, elevators, escalators, industrial production equipment and robots used in manufacturing.
Mining engineers develop ways to extract coal, metals and minerals. They design mines, supervise the construction of mine shafts and tunnels and devise methods for transporting minerals to processing plants. Some mining engineers work with geologists and metallurgical engineers to locate new ore deposits.
Nuclear engineers develop nuclear plants to generate power. They work on the use of nuclear fuel and the safe disposal of waste produced by the generation of nuclear energy.
Petroleum engineers develop ways for extracting oil and gas from deposits below the Earth's surface. They work with geologists to determine the drilling methods to be used and design the necessary equipment, including systems for the injection of water, chemicals, gases or steam into an oil reservoir to force the oil to the surface for collection.
Systems engineers work on complex projects such as designing spacecraft, software development, robotics or bridge building, all of which involve a number of different engineering specialists. Systems engineers use computer modelling to work out what the impact one part of an engineering project would have on another, and how to solve any problems that arise.
How engineers work
When developing a product, different kinds of engineers work together. For example, when building robots, an engineering team will typically have at least three types of engineer. A mechanical engineer would design the body and actuators (a component that moves something). An electronics engineer would design the sensors, electronics and control circuits. A computer software engineer would develop the software that makes the robot operate correctly.
Engineers use computers to produce their original designs and to test exactly how a machine, structure or system that they have designed operates. Computer-aided design (CAD) software enables engineers to create models of designs that can be analysed without having to make expensive physical prototypes (working models).
Consultant: Mike Goldsmith
pics
Without in any way limiting Q-files Ltd’s exclusive rights under copyright, any use of this publication to “train” generative artificial intelligence (AI) technologies to generate text is expressly prohibited. Q-files Ltd reserves all rights to license use of this work for generative AI training and development of machine learning language models.