of Asperity
Source: Webster's dictionaryA droplet resting on a solid surface and surrounded by a gas forms a characteristic contact angle θ. If the solid surface is rough, and the liquid is in intimate contact with the solid asperities, the droplet is in the Wenzel state. Source: Internet
If the liquid rests on the tops of the asperities, it is in the Cassie–Baxter state. Source: Internet
John Leslie (1766–1832) noted a weakness in the views of Amontons and Coulomb: If friction arises from a weight being drawn up the inclined plane of successive asperities, why then isn't it balanced through descending the opposite slope? Source: Internet
The final preparation procedure involves the in situ removal of these asperities by field evaporation just by raising the tip voltage. Source: Internet
The sides of a fault move past each other smoothly and aseismically only if there are no irregularities or asperities along the fault surface that increase the frictional resistance. Source: Internet
This actual area of contact, caused by " asperities " (roughness) increases with pressure. Source: Internet