to download this optical illusion (don't worry I have
virus checked it)
It's about 22k so it should only take a few seconds.
Click on "Open". Keep your hand on your mouse and
stare at the centre of the
screen with your eyes wide open for at least 30 seconds.
Then, without moving your head or hand, only move your eyes,
look down at your hand on the mouse.
The longer you stare at the screen the better the effect!
Who needs drugs to get this sort of effect!
This is one of my favourites