Pascal's Principle states that:

> Pressure applied to an enclosed fluid is transmitted undiminished to every point within the fluid and to the walls of the container.

This means that if you apply a force to a fluid in a closed container, the pressure increase will be the same everywhere in the fluid, including against the walls of the container.

Example:

Imagine a syringe filled with water. When you push down on the plunger, you increase the pressure in the water. This pressure increase is transmitted equally throughout the water and against the walls of the syringe, regardless of the shape of the syringe.

Key points to remember:

* Pascal's Principle applies to both liquids and gases.

* The pressure is transmitted equally in all directions.

* The principle is the basis for many hydraulic systems, such as car brakes and lifts.