The viscosity of suspensions Einstein showed that single particles increased the viscosity of a liquid (n)as a simple function of their phase volume () 7=7,(1+2.5p) There is no effect of particle size,nor of particle position, because the theory neglects the effects of other particles. This equation works for <10%The viscosity of suspensions Einstein showed that single particles increased the viscosity of a liquid (s) as a simple function of their phase volume (), s1 2.5 There is no effect of particle size, nor of particle position, because the theory neglects the effects of other particles. This equation works for < 10%