Try clicking on these two mind-benders (and you can change the number at the end for other variations on the theme).
1. Please count the number of times the team in WHITE passes the basketball.
http://viscog.beckman.uiuc.edu/grafs/demos/15.html
and
2. Something in this photo will CHANGE over the course of the video. Can you catch it?
http://viscog.beckman.uiuc.edu/grafs/demos/5.html
