There are two main types of fluid flow - laminar flow, in which the fluid flows smoothly in layers, and turbulent flow, which is characterised by chaotic motion and large amounts of mixing.

A few years ago Hackaday featured a laminar project which recently inspired [Kurt] to create his own. His goal is to create a computer controlled night time light show synchronized with music.

Ever seen a pitch that moves in a way no one can explain? That might be laminar flow—a rare aerodynamic phenomenon that can make a baseball defy expectations and completely fool hitters!