Hydraulics is a branch of science and engineering that deals with the mechanical properties of liquids. It involves the use of liquid fluids to generate power, control movement, and transmit force. Common applications of hydraulics can be found in machinery, such as excavators, forklifts, and hydraulic presses, where liquid pressure is used to lift heavy loads or perform tasks efficiently. The basic principle of hydraulics is based on Pascal's Law, which states that pressure applied to a confined fluid is transmitted equally in all directions. This allows for the design of systems that can amplify force, making it easier to move or lift objects. Hydraulic systems are widely used in various industries, including construction, automotive, and manufacturing.