Quirkology and the Amazing Color-Changing Card Trick

I was introduced to Professor Richard Wiseman’s “Quirkology” through Michael Shermer’s “Skeptic” column in Scientific American. I really enjoy Shermer’s writing and was intrigued by Shermer’s descriptions in his November and December columns. He also had high praise for Wiseman’s book, also entitled Quirkology. (The term, according to the web site, is “a term coined by Prof. Wiseman to refer to psychological research that is quirky. Much of this work uses mainstream methods to investigate unusual topics, or unusual methods to investigate mainstream topics.”)

I was exploring the web site and really enjoyed this video: “Colour-changing Card Trick”:

Comments?

(Be sure to watch the video prior to reading any comments, just in case!)