FIG. 7. Indentation follows a $1/R_0$ decay on substrates of different stiffnesses.

(A) Maximum indentation at $R=R_0$ as a function of aggregate size $R_0$ and substrate stiffnesses (0.7 kPa and 2.8 kPa). In both cases we observe that the indentation behavior is well approximated by a $1/R_0$ decay. (B) Maximum indentation scaled by elasto-capillary length scale, $\gamma /E$ as function of size $R_0$. Collapse of the data to a single regime indicates that indentation is proportional to elasto-capillary length. Each point represents a single experiment.