👉 The term "equisized" is a term used in physics and engineering to describe a system that is stable under small perturbations. This means that the system remains at its equilibrium state even when the external forces acting on it are varied by a small amount. In other words, the system's behavior is insensitive to small changes in its parameters. The concept of "equisized" was introduced by physicist and engineer Charles Bessel in 1865 as an extension of his
