The term "mechanical" originates from the Greek word "Mechine" and the Latin "Machina." The earliest definition of "mechanical" was provided by the ancient Roman architect Vitruvius in his work *De Architectura*, where he distinguished between machinery and tools: "There appears to be the following distinction between machinery (Machane) and tools (Organon). Machinery achieves its effect through the combined effort of many workers and great force, such as ballistae and wine presses. Tools, on the other hand, are operated by a single manipulator with careful handling to achieve their purpose, such as scorpions or Archimedean screws. Thus, both tools and machinery are indispensable in practical applications. The ancient Greeks already used cylindrical gears. Hero of Alexandria, in the 1st century, was the first to discuss the fundamental elements of machinery, identifying five categories: wheels and axles, levers, pulleys, wedges, and screws. Hero's analysis reflects the characteristics of classical mechanics. In ancient China, mechanisms such as the cross-bearing frame that maintains a level position in incense burners were already in use.".