master curve of the rescaled total traction force as a function of the amplification parameter. To produce this figure, each of the data sets shown in Fig. 2(same colour code) was fitted to Eq. (9) (dashed line), using T 0.01 N, and H as a free parameter(see Fig. 3 between the simple tribology data and that of the in tcrlcavcd books providcs confidcncc thc modol. Fur thermore, it is noteworthy that the classic phonebook cally s of probes a broad range of loads that typi and a nearly sixtold change demonstration decades, in the coefficient of kinetic frictionz The self similar Eq. (3), suggests that with T 0.01 N, and the best fit values of Au for each experiment see Fig. 3), all data should collapse when normalised ap