For example, when you squeeze one end of a balloon, the balloon expands out on the other end.
When you squeeze one end of a toothpaste tube, toothpaste emerges from the other end. The pressure has been transmitted through the fluid toothpaste.
A common application of this is a hydraulic lift used to raise a car off the ground so it can be repaired at a garage. A small force applied to a small-area piston is transformed to a large force at a large-area piston. If a car sits on top of the large piston, it can be lifted by applying a relatively small force to the smaller piston, the ratio of the forces being equal to the ratio of the areas of the pistons. The hydraulic lift is very similar to a lever, where a small force applied through a large distance can move a heavy object a small distance. The work required to lift the heavy object equals the work done by the small force. A lever uses a bar and a fulcrum to transform the work - the fluid does that in the hydraulic lift.
When you squeeze one end of a toothpaste tube, toothpaste emerges from the other end. The pressure has been transmitted through the fluid toothpaste.
A common application of this is a hydraulic lift used to raise a car off the ground so it can be repaired at a garage. A small force applied to a small-area piston is transformed to a large force at a large-area piston. If a car sits on top of the large piston, it can be lifted by applying a relatively small force to the smaller piston, the ratio of the forces being equal to the ratio of the areas of the pistons. The hydraulic lift is very similar to a lever, where a small force applied through a large distance can move a heavy object a small distance. The work required to lift the heavy object equals the work done by the small force. A lever uses a bar and a fulcrum to transform the work - the fluid does that in the hydraulic lift.