I wondered how the "static" visualizations were produced, then noticed the link under the image: http://bl.ocks.org/mmalone/bf59aa2e44c44dde78ac http://bl.ocks.

I wondered how the "static" visualizations were produced, then noticed the link under the image: http://bl.ocks.org/mmalone/bf59aa2e44c44dde78ac http://bl.ocks.org/mmalone/bf59aa2e44c44dde78ac There you can see the code and watch it run. Neat!