Slack Dynamics on an Unfurling String
  An arch will grow on a rapidly deployed thin string in contact with a rigid plane. We present a qualitative model for the growing structure involving the amplification, rectification, and advection of slack in the presence of a steady stress field, validate our assumptions with numerical experiments, and pose new questions about the spatially developing motions of thin objects. 
J. A. Hanna, C. D. Santangelo
cond-mat.soft nlin.PS physics.flu-dyn