Abstract

An apparatus for the determination of the viscosity coefficient of water in the neighbourhood of a quartz glass surface is described. The law of Stefan-Reynolds is applied in a special modification. The relative viscosity coefficient of water between two quartz glass plates having a distance smaller than 100 A lies beyond 10 for small shearing stresses. Increasing shearing stresses lead to smaller values of the relative viscosity coefficient of such water zone, so that a non-Newtonian behaviour of flowing water in very thin layers can be accepted.

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