...is experimal physics focussing on the dynamics of pattern formation.
The investigated systems can be devided into (complex) fluids and (wet) granular matter.
Individual glass particles suspended in water;
Their collective assembly to mushroom-like structures;
The time sequence of a suspension in a rotating drum demonstrates demixing;
Artificial creeping dunes created by shear flow;
A drop of a magnetic liquid (ferrofluid) before pinch-off;
Spatio-temporal image of convection rolls in a liquid crystal.
This postcard provides a potpourri of some of the materials used.