The contact angle is the arccosine of the negative of the ratio of this value for a liquid-solid interface to this value for a liquid-gas interface.
Jaeger's (YAY-gurs) method measures this quantity by measuring the pressure required to form a small bubble. It is denoted by lowercase gamma and is most commonly expressed in dynes ("DINES") per centimeter. The contact angle is the arccosine of the negative of the ratio of this value for a liquid-solid interface to this value for a liquid-gas interface. DPPC reduces this quantity in alveoli (AL-vee-OH-lie); it, like many (*) detergents, is an example of a surfactant. For 10 points, name this property of liquids that allows small insects to walk on water.
Jaeger's (YAY-gurs) method measures this quantity by measuring the pressure required to form a small bubble.
{surface tension}