Engineers explore questions related to designing, repairing, and improving aspects of the physical world. Wherever people require a safer, faster, more effective, more efficient, more comfortable, or less expensive way to accomplish a task, engineers investigate and suggest solutions. The tasks might be related to transportation, to the construction of buildings and bridges, to the design of electrical grids and other city infrastructure, or to the invention of appliances and tools in the home or in the workplace.
Engineers explore questions such as these:
An aging bridge in an area with heavy traffic must be replaced as soon as possible. What is the best design for a new bridge that can support a heavy payload but can also be built in a short period of time?
Can a liquid laundry detergent be invented that will dissolve more quickly in water and flow more efficiently through the hoses of a new high-efficiency washing machine?
What material would be best for resurfacing a parking lot in an area that often floods when it rains? What are the properties of different materials that might be used for this construction project?
Two aerospace companies have proposed different configurations for the wings of a new fighter plane. Which of the two wing designs will allow the aircraft to achieve the highest possible speed with the lowest possible vibration at the most affordable cost?
Is it possible to invent electronic devices that can be powered wirelessly rather than with batteries or electrical power?
Because customers want more environmentally friendly equipment for the home, a manufacturer of lawn mowers asks whether it is possible to construct a new kind of engine, similar to the engines in hybrid cars, that would burn fuel more efficiently and more cleanly than current engines.