The contact angle (symbol θC) is the angle between a liquid surface and a solid surface where they meet. More specifically, it is the angle between the...

they measure angles by mechanical contact they are classed as mechanical protractors. The bevel protractor is used to establish and test angles to very close...

cause the drop to ball up and avoid contact with the surface. The contact angle (θ), as seen in Figure 1, is the angle at which the liquid–vapor interface...

Kurt Steven Angle (born December 9, 1968) is an American retired professional wrestler, former amateur wrestler and current podcast host. He became a...

needed] Contact angle is a measure of static hydrophobicity, and contact angle hysteresis and slide angle are dynamic measures. Contact angle hysteresis...

common way to measure surface energy is through contact angle experiments. In this method, the contact angle of the surface is measured with several liquids...

surfaces are highly hydrophobic, i.e., extremely difficult to wet. The contact angles of a water droplet on an ultrahydrophobic material exceed 150°. This...

involute gear depends only on the number of teeth on the gear, pressure angle, and pitch. That is, a gear's profile does not depend on the gear it mates...

Angle trisection is a classical problem of straightedge and compass construction of ancient Greek mathematics. It concerns construction of an angle equal...

Cassie's law, or the Cassie equation, describes the effective contact angle θc for a liquid on a chemically heterogeneous surface, i.e. the surface of...