BOOMERANG ILLUSION

Here is a wonderful illusion, first created by psychologist Joseph Jastrow, demonstrating that seeing isn't believing.....

You can download your own version of this illusion here.

 

"Wiseman shows us a higher joy as he skewers the paranormal charlatans, blows away the psychic fog and lets in the clear light of reason"
Richard Dawkins

"...a fabulously funny and enlightening dissection of paranormal claims"
PZ Myers

"...both scholarly and hilarious...this fast-paced book, packed with exercises to try for yourself, is a terrific read"
Susan Blackmore