A tethered spinal cord is a disorder in which a child's spinal cord is pulled down and stuck, or fixed, to the spinal canal.The spinal cord normally floats free inside the spinal canal. As a child grows, the spinal cord must be able to move freely inside the spinal canal. tethered spinal cord is a disorder in which a child's spinal cord is pulled down and stuck, or fixed, to the spinal canal.
Surface Tension Surface tension is the skin-like surface of a liquid due to the cohesive forces between the liquid molecules. The diagram below shows an imagined magnified view of the surface of water, the molecules of liquid at the surface do not have other like- molecules above them.
Cohesion and Surface Tension. The cohesive forces between molecules in a liquid are shared with all neighboring molecules. Those on the surface have no neighboring molecules above and, thus, exhibit stronger attractive forces upon their nearest neighbors on and below the surface.