Uploaded July 2015 | Updated September 2026, 1 week ago
Simulation of a scroll wave pinned to a moving pinning site (cyan cylinder). The rightward motion of the anchor stretches out the filament of the scroll wave. The trailing end of the vortex backbone has a speed inversely proportional to the gap height between the anchor and the lower system wall. This simulation is based on the Barkley model of excitable reaction-diffusion systems.
Simulation of a scroll wave pinned to a moving pinning site (cyan cylinder). The rightward motion of the anchor stretches out the filament of the scroll wave. The trailing end of the vortex backbone has a speed inversely proportional to the gap height between the anchor and the lower system wall. This simulation is based on the Barkley model of excitable reaction-diffusion systems.








![Dancing Drop - Magic Disappearance Act 4
A dissolving (and evaporating) drop of dichloromethane floating on water containing a surfactant ([CTAB]=10mM). There is NO external intervention; this is spontaneous, selforganized motion! The viewed area is approx. 1 inch wide and the movie plays close to real time.
Reference: http://onlinelibrary.wiley.com/doi/10.1002/anie.201104261/abstract
(V. Pimienta et al. Angew. Chem. Int. Ed. 50, 10728 10731, 2011). Dancing Drop - Magic Disappearance Act 4](https://i.ytimg.com/vi/Ti1lIMnqDeA/mqdefault.jpg)

