illusions

Those in the London area may have seen this play on the TV (it's almost 2 years old) but it's worth just over 40 seconds of every driver's time in my opinion: <object width="560" height="340"><param name="movie" value="http://www.youtube.com/v/4xW-VAvQvSk&hl=en_GB&fs=1&"></param><param...

1.To see the illusion, you need to stare intently at the black dot in the centre of the image and move your head toward then away from the screen...Is it a moving image, or are your eyes playing tricks on you? 2.This one is mad.... How many black dots can u count ? 3. OK, this...