these optical illusions are amazing. especially the one with the spinning disk at the end, go really close to the screen for the best effect.
http://www.liquidgeneration.com/sabotage/optical_sabotage.asp
if you have a weak heart.......don't click!
http://www.liquidgeneration.com/sabotage/optical_sabotage.asp
if you have a weak heart.......don't click!