By their capillary action they drain the lymph to a healthy region above, and thus enable it to enter the circulation.
What evidence of capillary action have you seen outside of the laboratory?
The fused borax works its way in by capillary action, and the spelter follows.
This it does by capillary action, as the mercury spreads over the entire surface of the zinc.
The sponge becomes saturated with water because of the capillary action of the carborundum upon the water.
A deep and absorptive subsoil returns water to the surface, by capillary action, as it is needed.
We have now described the principal forms of the theory of capillary action during its earlier development.
By this simple contrivance the capillary action can be stopped or renewed in a second, without removing the top of the lubricator.
The oil is fed to the brush by the capillary action of the streamers.
Special effects of this force are classified as (a) capillary action, and (b) surface tension.
capillarity cap·il·lar·i·ty (kāp'ə-lār'ĭ-tē)
The interaction between contacting surfaces of a liquid and a solid that distorts the liquid surface from a planar shape.
|capillary action |
The movement of a liquid along the surface of a solid caused by the attraction of molecules of the liquid to the molecules of the solid.
Our Living Language : The paper towel industry owes its existence to capillary action, both for the way paper towels soak up liquids and for the trees out of which the towels are made. Molecules of water are naturally attracted to each other and form temporary hydrogen bonds with each other; their attraction for each other on the surface of a liquid, for example, gives rise to surface tension. But they are also attracted in a similar way to other molecules, called hydrophilic molecules, such as those in the sides of a narrow glass tube inserted into a cup of water, in the fibers of a towel, or in the cells of tree tissue known as xylem. These attractive forces can draw water upward against the force of gravity to a certain degree. However, they are not strong enough to draw water from the roots of a tree to its highest leaves. An additional, related force, referred to as transpiration pull, is required to do that. As water evaporates from the tiny pores, or stomata, of leaves, water from adjacent cells is drawn in to replace it by osmosis. Again, intermolecular attractive forces cause other water molecules to follow along, ultimately drawing water up from the roots of the tree.