👉 In physics and engineering, "passing through" or "impassability" refers to a physical phenomenon where an object cannot pass through a certain boundary or barrier. This is often used in situations where the boundaries are not defined by solid objects but by other physical properties such as air resistance, water viscosity, or even electromagnetic fields. The term "passing through" is typically associated with an object that has been placed within a material medium and cannot return to its original state without entering it. For