Fig. 2
From: Direct measurement of superdiffusive energy transport in disordered granular chains

Wave propagation in homogeneous and disordered chains. Spatiotemporal distributions of particle velocities in (a–c) a homogeneous chain and (d–f) a disordered chain with static precompressions of (a, d) 0 N, (b, e) 10 N, and (c, f) 50 N