Wasnt sure where to put this, so GD it is.

 

Mysteriouse wierd purple dot thing

 

stare at the outside of the ring, and you can clearly see a ring of purple dots with a green dot rotating around the circle.

 

if you try and follow the green dot, it disappears, to be replaced by a rotating gap in the purple dots.

 

if you stare at the cross in the centre, all of the purple dots will dissapear.

 

wierd, neh?

yea

Trippy

very cool, playing with colors.

Interestingly, the dots still disappear even when you are only looking at the cross with one eye.

The cones, responsible for color vision, are located at the center of the retina (fovea centralis), while the rods, which are motion sensitive, are not present there. So the stationary, colored dots eventually disappear from view. More

Warning : Personal crackpot theory follows ...

 

(At the risk of sounding quackish) I think a parallel can be drawn between the green spot (actually the absence of a pink spot) and hole conduction (movement of the absence of an electron). As we well know, transport of an electron vacancy can be pictured as the motion of a unit positive charge (or the negative of the electron charge). Likewise, the movement of a pink vacancy appears like it were in fact the motion of a spot whose color is the negative of pink - which is green.

The cones, responsible for color vision, are located at the center of the retina (fovea centralis), while the rods, which are motion sensitive, are not present there. So the stationary, colored dots eventually disappear from view. More

Ahhh, you ruined the cool magic trick

 

 

Edit: oh I see, like when you stare at a certain color and then look at something white and it apears to be the opposite color of what you were looking at, only super-inposed over the top of the purple dots when you keep looking at the cross in the center.