Mechanical engineers create machines to work for humankind. In a concrete way, mechanical engineering touches every aspect of life on our planet. Mechanical engineers design or work with computers, machines, power systems, factory production lines or vehicles for sea, land, air and space. The use of power is central: harnessing energy to work for all of us will be your fundamental activity.

As a mechanical engineer, you may work with computer software to design and develop new machinery, or use powerful super-computers to study the aerodynamics of the autos of tomorrow; analyze the performance of a host of machines and devices-gas turbines, control devices, jet engines, and power plants-and develop more efficient ways to keep them running smoothly;
design a new rocket engine for the sub-zero cold of space, or a micro-probe to dissect a single-nerve cell under a microscope; create an intelligent automotive suspension system that does away with shock absorbers, replacing them with onboard computers, acceleration sensors, and hydraulic actuators that raise wheel struts in response to changing road conditions; or manufacture an ultrasonic device that deters whales, dolphins and seals from swimming into fishing nets.

Source: www.Jets.org