In this technique of measuring surface tension, if, due to the action of gravitational force, small drops of bubbles of liquid or gas are spherical, the larger drops deform correctly, due to the action of the gravitational force. The area of the spherical surface is comparable to its radius squared and depends on the amount of gravitational stress, proportional to the third power radius. Interfacial and surface tension can also be determined by high temperature pressure using this technique.
