Mechanical engineers typically do thefollowing :
Mechanicalengineers design and oversee the manufacturing of many productsranging from medical devices to new batteries.
Mechanical engineers design power-producing machines suchas electric generators, internal combustion engines, and steam andgas turbines as well as power-using machines, such as refrigerationand air-conditioning systems.
Mechanicalengineers design other machines inside buildings, such as elevatorsand escalators. They also design material-handling systems, such asconveyor systems and automated transferstations.