Pascal’s principle states that the pressure applied to the surface of a static fluid is transmitted throughout the fluid undiminished. This principle is used to find the pressure beneath the surface of a fluid. When two points in a static fluid system are at different heights, the pressure fluid height relationship reveals the difference in pressure between the two points. Force is pressure times area; thus,when pressure is the same, force can be greater if the area in which the pressure is applied to is increased. Hydraulic systems are force multipliers; therefore, the ratio of the output forces to the input force is equal to the ratio of the input areas to the output area.