Friction is a force between two surfaces rubbing against each other. If the surfaces are smooth, there is less friction. If the surfaces are rough, there is more friction. If you rub your hands ...

The buildup of static charge often occurs due to friction. At a microscopic level, even smooth surfaces are rough and irregular.

The EC-SFA provides insights into the behavior of smooth and rough gold surfaces ... The SFA has greatly contributed to our understanding of surface phenomena, such as adhesion, friction, and ...