Cool Optical Illusion
 

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old.

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Sorry, I haven't been keeping up with my subscription to Popular Optical Illusions.

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someone posted it on here like 4 months ago.

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That is sweet though.

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yeah it is pretty cool though.

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I don't get it. How come they look very different on my screen?

Re: Cool Optical Illusion
 

printscreen it and edit it in paint or something. You'll see that they are indeed the same color.

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Dude, I have no idea. Maybe your monitor is broken or something. It could be that it's an

OPTICAL ILLUSION!!

(although unlikely) It's probably just your monitor.

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For the lazy folks...

http://www.rit.edu/~emr3008/illusion4corrected.jpg

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This is the coolest one I've ever seen!

The guy in the post right above me providing a bar linking the two squares helped a lot. I had to put my hands to the screen and block out everything but the two squares to really believe they were the same color. Very good!

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We talk about this kind of stuff in my psychology classes all the time. Pretty cool stuff.

Ponks

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The original Shades of Grey thread with a poll

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For those who missed it a few months ago (old timers, don't give away the answer), here is a tough one:

http://img.photobucket.com/albums/v1...sx/optical.gif

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first time I have seen this, how is this suppose to be considered tricky and/or hard?

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[ QUOTE ]
first time I have seen this, how is this suppose to be considered tricky and/or hard?

[/ QUOTE ]

Some people have a hard time figuring it out, where the extra square comes from. If you have the answer, please reply in white text.

Re: Cool Optical Illusion
 

I think that triangle one is pretty tricky, I asked about it in 2+2 irc the other day, I had to get someone to explain it to me, I just didn't get it at all.

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This too is old. Somebody posted the optical illusion above and then there were a flurry of these kind of things. Both of these are very good and I won't spoil the surprise for those that haven't seen them and don't remember.

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I know it's old, I posted it months ago, but there are a lot of new posters now who haven't seen it.

The other old one I posted is this. I still can't solve this one. [img]/images/graemlins/tongue.gif[/img]

http://www.bobandtom.com/gen3/6cover..._illusion2.jpg

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to be honest with you, I misred the thing the first time I looked at it. I have no idea how there is a hole there. Please explain, perhaps via PM?

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This one is easy. Her hair is a metaphor for a waterfall. How do I see this? Well it's wet firstly, as is her shirt. Secondly you can see that her head is tilted in such a way so as to appear to be falling straight down as if a waterfall.

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TSC,

I remember staring at this for at least an hour before I either finally got it, or someone gave me a hint and it dawned on me. It's pretty neat.

If tyfromm hasn't pm'd you yet, let me know and I will.

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There's a waterfall?

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yeah he told me. Pretty damn tricky, not sure how I would have gotten it if he hadn't told me.

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Spoiler
Ok. I think I got it. The answer lies in the fact that the two triangles do not have the same slope. The red triangle has a slop of 3/8 = 3.75, while the green triangle has a slope of 2/5 = 4. This difference is farily undetectable neglecting the use of the grid pattern, so most people just assume they are the same. Do I have to explain further for full credit?

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I got the triangle illusion right away but even with Granny's hint I still had to print it and get scissors and cut it out. I still can't believe it.

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I would also like someone to pm me the answer to the triangle one, or at least post the reason in white.

Re: Cool Optical Illusion
 

Here is the original thread with several explanations in white text.

And here's another subtle optical illusion:
http://img.photobucket.com/albums/v2...rxtoxic/ha.gif