You might try it to believe it. I tried it several times and it really can detect the card I selected. http://www.petrix.com/magic/index.html
Have you tried it several times? I was wondering then that maybe there's a hidden camera in each card that can detects eye movements.
It's just a trick that's been around since the aliens from the planet CardSharkia invaded earth. But it's kind of hush hush so don't tell anyone. Deathrays don't feel too good.
Don't worry Cheater.....not everyones mind can cope with the obvious.....therefore the secret is always going to be safe with you....."Nanoo, Nanoo"........ Cochise, Searching for answers in Cincinatti......