click through to animate in high-res: 500x500
(view original color function here)
Mathematica code:
Animate[
DensityPlot[
Sin[r*Abs[(x + I y)]],
{x, -2.5, 2.5}, {y, -2.5, 2.5},
PlotPoints -> 15, Mesh -> False, Frame -> False, ColorFunction -> Hue],
{r, 1982.2, 1983.1, .1}]