Mechanical Engineers are professionals who apply principles of physics, materials science, and engineering to design, analyze, and manufacture mechanical systems. They work on a wide range of products, from small components like gears to large systems such as aircraft and automobiles. Their expertise is crucial in ensuring that these systems operate efficiently and safely. In addition to design, Mechanical Engineers also engage in testing and maintenance of mechanical systems. They often collaborate with other engineers and professionals to innovate and improve existing technologies, making significant contributions to industries such as automotive, aerospace, and energy.