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.
Why bubbles are round: The surface tension of water provides the necessary wall tension for the formation of bubbles with water. The tendency to minimize that wall tension pulls the bubbles into spherical shapes. Surface Tension and Droplets: Surface tension is responsible for the shape of liquid droplets. Although easily deformed, droplets of water tend to be pulled into a spherical shape by the cohesive forces of the surface layer.