The characteristic of viscous it is known as viscosity . Something viscous is adhesive or pasty , differing from other states such as solid or the liquid .
In this sense, it should be stressed that something viscous also usually relates to the term mucus because both concepts come to make clear that the element they refer to is characterized by being slippery, sticky and also glutinous.
Among the most viscous products would be from gelatin, various types of soaps, shampoos, gels and other beauty products. Likewise, it should be stressed that there is a toy that is characterized by its viscosity and that it is it that makes decades ago become the playmate of many children.
Specifically we are referring to blandiblu, a polymer that is characterized as a "mass" of different colors that can be molded at the whim of each person to form all kinds of figures. It is also used by the smallest of the house to use it as a "weapon" in fun launch battles with friends.
This viscous mass to play appeared in the year 1976 thanks to the Mattel company and caused a stir in the children's world, and especially in the decade of the 80s as it became one of the most demanded entertainment for children.
There is talk of viscosity to refer to the opposite force that a fluid exerts before a deformation of tangential characteristic. It is a property characterized by the resistance to flow that is generated from the friction between the molecules .
Since all known fluids have some level of viscosity, the hypothetical fluid without viscosity (i.e., with zero viscosity) is known as ideal fluid .
More specifically, we can establish that viscosity is the main hallmark that identifies each and every one of the existing lubricants. In addition, in this case, in order to carry out the classification of said lubricants on the basis of it, it is necessary to determine that it is clearly determined both by what the temperature is and by what the pressure is.
The viscosity is noticed with the friction that is recorded between successive layers of a fluid . By dragging the surface of a fluid, the lower layers move more slowly than the surface as they are affected by tangential resistance. Viscosity, therefore, manifests itself in moving fluids (where tangential forces come into action)
When the viscosity is very large, the friction between the adjacent layers is pronounced and the movement is therefore weak.
The viscosity of the fluids is measured through the viscosity coefficient , a parameter that depends on the temperature . The physical unit of the dynamic viscosity receives the name of pascal-second , according to International System of Units .
He poise , on the other hand, is the unit of the cegesimal system of units for the dynamic viscosity . The name was established in honor of the Gallic scientist Jean Louis Marie Poiseuille .
The kinematic speed Finally, it is the ratio between dynamic viscosity and density. Its physical unit in the cegesimal system of units is known as stoke , While in the YES is the square meter / second .