How Pressure is Exerted Equally in all Directions in an Enclosed Fluid

Since the particles are in constant motion there is pressure exerted on them by the force of gravity. There is pressure on the sides of a container and there is also pressure on the bottom of a container from the weight of the substance inside.  Pascals Law states that pressure is exerted in all directions throughout an enclosed fluid. From Pascals Law, there has been many new devices created such as: hydraulic systems (using enclosed liquids) and pneumatic systems (using enclosed air).