Natural behavior? Sez who?

Next thing you know, the advocates of the two-dimensional fluid vortex lifestyle will want all our children indoctrinated in school:

Two-dimensional fluid vortexes attract, swirling and merging with their partners in a turbulent ballet. This natural behavior...

If you have the strength of character not to get swirly, clik here.

For the whole Art of Science 2009 Gallery, clik here. Neat pics.