ELI5: Explain Like I'm 5

Mechanical engineering

Mechanical engineering is a type of engineering that helps to design and build complex machines and products. Mechanical engineers use math and science to design and test items like engines, tools, and machines that are used to make things. They also figure out ways to make machines and products safer and more efficient. Mechanical engineers often work with engineers from other disciplines to make sure products work correctly and meet the needs of the people who use them.