👉 Crumbing is a type of mathematical model that describes how an object behaves under repeated applications of an external force. It is named after the French mathematician and physicist Paul de la Vallée-Poussin, who first proposed it in 1872. In crumbing, the object is made up of several layers or "layers" that interact with each other to perform a specific function. Each layer can be considered as an independent system that responds differently to the external force applied. The
