Digestion Essay The path of digestion begins in the mouth when food is broken down mechanically, into smaller pieces, by the teeth and tongue. The complex carbohydrates found in the food are also broken down chemically with the help of the enzyme (ptyalin), found in saliva.
apparent viscosity. (fluid mechanics). The value obtained by applying the instrumental equations used in obtaining the viscosity of a Newtonian fluid to viscometer measurements of a non-Newtonian fluid. 1  Facebook. 2  Twitter.
-. The IUPAC symbol for viscosity is the Greek symbol eta (Î·), and dynamic viscosity is also commonly referred to using the Greek symbol mu (Î¼). The SI physical unit of dynamic viscosity is the pascal-second (PaÂ·s), which is identical to 1 kgÂ·m â1 Â·s â1.