Video of red bead experiment with Dr. Deming.
https://www.youtube.com/watch?v=ckBfbvOXDvU
Explanation of, and script for, Deming's red bead experiment.
http://www.shmula.com/how-to-red-bead-experiment/4628/
Online graphical simulation (demo version)
http://www.symphonytech.com/redbeads.htm