Part 1 of Essay
My problem was to find out how to test or measure . I think the reason of some of the force in is cohesion and gravity. is the condition existing at the free surface of a liquid, resembling the properties of an elastic skin under tension. The tension is the result of intermolecular forces exerting an unbalanced inward pu ....

Part 2 of Essay
.... as in the case of mercury, which forms an almost round ball when a small quantity is placed on a horizontal surface. The near-perfect spherical shape of a soap bubble, which is the result of the distribution of tension on the thin film of soap, is another example of this force; surface tension alone can support a needle placed horizontally on a water surface. Surface tension depends mainly upon the forces attraction between the particles within the given liquid and also upon the gas, solid, or liquid in co ....