机械工程是最古老，应用范围最广，用途最广泛的工程学科之一，涵盖了所有行业和许多研究领域，包括：发电，航空航天，发动机设计，药物加工，生物医学设备设计，可再生能源设计，运输等。 。机械工程就是要利用科学，数学和技术来寻找使机械和机电产品正常工作的更好方法。这可能是设计电动汽车以减少污染，设计使残障人士使用的设备，或者改进风力涡轮机的设计以更有效地捕捉风，并以可持续，道德和专业的方式进行所有这些工作。
Mechanical Engineering is one of the oldest, most broad-ranging and versatile engineering disciplines, covering all industry and many research sectors including: Power Generation, Aerospace, Engine Design, Pharmaceutical Processing, Biomedical Device Design, Renewable Energy Design, Transportation, and many more. Mechanical Engineering is all about using science, mathematics and technology to find better ways of making mechanical and electro-mechanical things work. This may be designing electric vehicles to reduce pollution, designing enabling devices for people with a disability or improving the design of a wind turbine to catch the wind more efficiently, and doing all this in a sustainable, ethical and professional manner.