👉 Underpinning is a term in physics and engineering that refers to a material or system that acts as a stabilizing force on another material or system. It is often used when discussing the stability of objects, such as structures or systems, by using the concept of "underpinning" to explain how they are able to maintain their own stability. Underpinnings can be either solid or fluid materials, and they can be a combination of different substances or a single substance. They can also be
