Look on the hoses and gaskets to find from where the fluid could be leaking. Add power steering stop leak additive to your power steering fluid. Lucas Power Steering Stop Additive is 100 percent guaranteed to stop seal leaks. In older cars, the seals shrink, causing leaks.
Diffusion is the net movement of molecules or atoms from a region of high concentration with high chemical potential to a region of low concentration with low chemical potential.
Definition: Diffusion of Innovation. Diffusion of Innovation is a theory that explains how over a period of time, an idea or a product offering gains popularity or diffuses through social system & culture. The final result of diffusion is that the people accept the new idea or product after some time.