Movie S1. Meandering: Pattern of sinusoidal meanders formed by depositing a naturally straight thin elastic rod from a deployment height, H=50 cm, at an injection speed, v=2.3 cm/s, onto a belt moving at vb=2.0 cm/s (i.e., dimensionless speed mismatch, ϵ=0.13). Material properties of the rod are radius, r0=0.16 cm; density, ρ=1.18 g/cm3; Young’s modulus, E=1.3 MPa (i.e., gravito-bending length, Lgb=3.3 cm). Experiments (Left) vs. simulations (Right) are shown. For convenience, the movie has been sped up by a factor of 5, with respect to real time.