Re^2: Tk Optical Illusion

Well what is supposed to happen, is the green circles dissapear 1 at a time, in a counter clockwise fashion. Where there is no green circle, your eye should see a pink circle. See if you can see it here.

Maybe the lcd screen dosn't change pixels fast enough for it to work?

I'm not really a human, but I play one on earth. flash japh

Comment on Re^2: Tk Optical Illusion

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Re^3: Tk Optical Illusion by ambrus (Abbot) on Dec 13, 2005 at 18:20 UTC
Lcd monitors (standalone or those of notebooks) currently in use are fast enough. This was not the case with the lcd displays of laptops ten years ago. (I think this is why they're now called TFT instead of LCD.) I've followed the link you gave and I've seen the illusion. It's very wierd how the pink dots disappear and sometimes reappear when you stare on the middle cross. I have a tft monitor btw.	[reply]
Re^3: Tk Optical Illusion by Celada (Monk) on Dec 13, 2005 at 19:26 UTC
Sorry, I misunderstood you! I see the pink orb going around the circle just fine. I thought I was supposed to see a pink orb in the middle (on the crosshairs), the explanation ostensibly being that my eyes glance at the pink orb around the circumference when I see movement there and the persistence of vision is supposed to show me the orb in the middle when I go back to starting at it. Apparently the illusion of the pink orb going around was so strong for me that I never stopped to think that was the illusion! No wonder I thought I had missed where the creation of the circulating pink orb occured when I scanned the code! I feel a little silly now... (Oh and maybe still a bit weird from staring at the pattern!)	[reply]
Re^4: Tk Optical Illusion by zentara (Cardinal) on Dec 13, 2005 at 20:27 UTC
Yeah, it's quite a strong illusion, that is why I posted it. The pink circle seems so real, yet it is not there. I'm not really a human, but I play one on earth. flash japh	[reply]
Re^3: Tk Optical Illusion by arkturuz (Curate) on Dec 14, 2005 at 13:22 UTC
I see it on LCD without problem. It's 'Neovo F-417'	[reply]