Home Mobile Archives Reader Blogs Register Login

Monday, March 12, 2007

Can Anyone Explain This

A friend emailed this to me.  These are the instructions that came with it:

If your eyes follow the movement of the rotating pink dot, the dots will remain only one color, pink.

However if you stare at the black “+” in the center, the moving dot turns to green.

Now, concentrate on the black “+” in the center of the picture.  After a short period, all the pink dots will slowly disappear, and you will only see only a single green dot rotating. 

It’s amazing how our brain works. There really is no green dot, and the pink ones really don’t disappear. 

image

If anyone can explain this to me, please do.

Comments

Avatar for Ronald Walter

What pink dots?  Pink elephants maybe, but no pink dots.  Then, I’ve been drinking vodka all day long, so that explains it all.

Laugh

The pink dots really do disappear.  It’s a virtual visual phenomenon. 

It’s down right cool, man.

If I look to the side a little, all of the dots are green.

Good on you for this one.

Ronald Walter on March 12, 2007 at 04:14 pm
Proof
Proof
12237 comments
Send a private message

There really is no green dot, and the pink ones really don’t disappear.

Congratulations! You’ve discovered the theory of man-made global warming! Substitute “man-made global warming” for “green dot” and “greenhouse gases” for “pink ones” and I think you’ve got it!



Trolls. It’s what’s for breakfast!
And then I eat their lunch.

Image and video hosting by TinyPic

Proof on March 12, 2007 at 04:35 pm

I have been seeing green dots all over that little area. I even came back to see if I was doing it wrong. It is pretty cool, man…

Zsa Zsa on March 12, 2007 at 05:53 pm

You should look it up in the archives, as Rob posted this a while back. As I remember, someone (probably that braniac Carrik) explained exactly how it works.

Andrew on March 12, 2007 at 08:30 pm
Avatar for William Woody

It’s an ‘after-image’ effect. What happens is that the color cones in your eye suffer from ‘fatigue’ and tend to perceive the color areas with less color--the pink eventually becomes gray when you stare at the cross for a long time because the red and blue receptors in your eye tend to fatique and see the same level as the green in the gray area of the screen.

You see green because for a moment each pink dot goes to gray--and the red and blue receiptors in your eye see less light, which is perceived as green: because gray (red + green + blue) - pink (red + blue) = green.

William Woody on March 12, 2007 at 11:26 pm

If anyone can explain this to me, please do.

Magic dots.


"Although I can accept talking scarecrows, lions and great wizards in emerald cities, I find it hard to believe there is no paperwork involved when your house lands on a witch.”
- Dave James

Steve L. on March 13, 2007 at 05:49 am

It is a psychadelic thing. Not really. BUT I thought I would give it a try???

Zsa Zsa on March 13, 2007 at 05:52 am

I agree will W. Woody. It has to do with the rods and the cones in our eyes and their becoming ‘saturated’ and then reacting with a seeming inverse color as they normalize.


Yun Chu said, “You must strictly not express in words what is very significant. Both dragon and snake are killed in one blow.”

Sparkie Arbuckle on March 13, 2007 at 06:17 am

sparkie and woody are convincing but I think Steve’s got it right.

smile


What’s going to happen to US industry when the global warming extremists like John McCain double the price of electricity?  I would think all these factories will close and set up in countries where they aren’t scared of technology.


The Whistler's signature
The Whistler on March 13, 2007 at 06:19 am

There is also some play here with the ‘phi phenomenon’, or the process by which our brain infers motion between similar stills, fed at a rate of at least 21 fps. The speed might be a little slower here which could be why its not perfectly smooth.


Yun Chu said, “You must strictly not express in words what is very significant. Both dragon and snake are killed in one blow.”

Sparkie Arbuckle on March 13, 2007 at 06:31 am

Steve said it was magic.


What’s going to happen to US industry when the global warming extremists like John McCain double the price of electricity?  I would think all these factories will close and set up in countries where they aren’t scared of technology.


The Whistler's signature
The Whistler on March 13, 2007 at 06:34 am

oh. magic. maybe even black magic. someone whould warn neiman not to look.
I forgot about that.
well, I guess its settled.


Yun Chu said, “You must strictly not express in words what is very significant. Both dragon and snake are killed in one blow.”

Sparkie Arbuckle on March 13, 2007 at 06:39 am

smile


What’s going to happen to US industry when the global warming extremists like John McCain double the price of electricity?  I would think all these factories will close and set up in countries where they aren’t scared of technology.


The Whistler's signature
The Whistler on March 13, 2007 at 06:52 am
Avatar for Rich

the dots are similar to the face of a clock the rotation of a hr. hand or minute hand spinning as a clocks hand spins would give the same illusion of the dots changeing color. The hand of the clock is transparent and the color of the back ground and as it passes over the pink dots the color transforms into the green color preceived as green dots. This is however just a guess on my part and I can only think that it is something much more complicated that this simple explaintion.
Rich

Rich on March 21, 2007 at 07:41 am

rich
its neural. our transducers are poorly insulated and/or recover from a color load poorly… they overreact.


Yun Chu said, “You must strictly not express in words what is very significant. Both dragon and snake are killed in one blow.”

Sparkie Arbuckle on March 21, 2007 at 08:19 am
Proof
Proof
12237 comments
Send a private message

its neural. our transducers are poorly insulated and/or recover from a color load poorly… they overreact.

Kinda like a Clinton- Obama- Edwards - Gore speech… visceral reaction, but no “there’ there!



Trolls. It’s what’s for breakfast!
And then I eat their lunch.

Image and video hosting by TinyPic

Proof on March 21, 2007 at 08:23 am
Page 1 of 1        

Post a Comment


Before commenting, please recite:

Grant me the serenity to ignore the trolls,
the courage to debate with honest opponents,
and the wisdom to know the difference.

Name   
Email   
URL   
Human?
  
 

Upload Image    

Remember my personal information

Notify me of follow-up comments?

Note: Notifications will only be sent to confirmed email addresses.