âºâº Definition: Second. A second of arc or arcsecond is a unit of angular measurement which comprises one-sixtieth of an arcminute, or 1/3600 of a degree of arc or 1/1296000 (approximately 7.710-7) of a circle.
The resistance of a liquid to flowing is its viscosity.   Viscosity is a property arising from friction between  neighboring particles in a fluid that are moving at dif â¦ ferent  velocities. In liquids, it could be considered the thickness.
Viscosity describes a fluid's internal resistance to flow and may be thought of as a measure of fluid friction. Thus, water is thin, having a lower viscosity, while vegetable oil is thick having a higher viscosity.iscosity describes a fluid's internal resistance to flow and may be thought of as a measure of fluid friction. Thus, water is thin, having a lower viscosity, while vegetable oil is thick having a higher viscosity.