From Rhizome Artbase

In 1999 I began to study the means by which dynamic graphical lines could convey a plausible sense of physicality. After some experimentation I developed a model for representing the underlying structure of "physical" lines, in which a finite-element, mass-spring-damper simulation is composed of virtual particles connected by alternating linear and torsional springs. The model has the effect of simulating the tensile properties of thin physical filaments, such as hairs or twigs. I used this physical model to create a series of reactive drawing systems, including Floccus.