This is very clever….
Prof Richard Wiseman has written a book called Quirkology: The Curious Science of Everyday Lives. As part of the publicity – and as a stroke of marketing genius – he’s been releasing some great YouTube videos.
This is “Corkology”:
A month later, to coincide with the book’s release, he released a clip showing how it was done.
Even more impressive, I think, is the Colour-changing Card Trick:
There are more videos on the Quirkology site.
These have been all over YouTube, but I managed to miss them. I came across Richard Wiseman’s work through the (rather good) Skepticality podcast.