👉 The m-fluid, or magnetorheological fluid, is a smart material that exhibits unique properties depending on the magnetic field applied to it. In its liquid form, it is similar to conventional oils but contains suspended magnetic particles that align when exposed to a magnetic field. This alignment causes the fluid's viscosity to rapidly increase, transforming it into a semi-solid or even gel-like state almost instantaneously. This property makes m-fluids highly useful in applications requiring rapid and reversible changes in viscosity, such as shock absorbers, clutches, and dampers, where they can adjust their behavior in real-time to optimize performance under varying conditions.