trig gif dispersion

Trigonometry GIFs from Wikipedia posted on Nasty Nets have been making the rounds of the tumblr blogs over the last 48 hours - very exciting to watch - documented here, partially, by a graphing process I don't really understand (is this a tumblr feature?).

This is kind of like the dispersion Seth Price talks about, only without Petzel gallery as a hub. (joke)

Or, a real time version of the spread of the OptiDisc GIF I flacked on the Net Aesthetics 2.0 panel last summer, without the paper/installation version that documented it.