# Amazing Optical Illusion **URL:** \ **Category:** Miscellaneous and Personal Stuff I Must Share\ **Created:** [November 3, 2003, 4:45pm UTC](https://boards.straightdope.com/t/amazing-optical-illusion/211177 "2003-11-03T16:45:10Z")\ **Posts on this page:** 12\ **Page:** 2
**Author:** ![astro](https://avatars.discourse-cdn.com/v4/letter/a/9dc877/32.png) [@astro](https://boards.straightdope.com/u/astro)\ **Post date:** [November 3, 2003, 9:40pm UTC](https://boards.straightdope.com/t/amazing-optical-illusion/211177/21 "2003-11-03T21:40:42Z")
Clipped a small section of square A and pasted it on top of square B in paint. Too bizarro!! You could make serious money on bars bets with that illusion. I would have bet $ 20 they were diffferent shades. ---
**Author:** ![photopat](https://avatars.discourse-cdn.com/v4/letter/p/e95f7d/32.png) [@photopat](https://boards.straightdope.com/u/photopat)\ **Post date:** [November 3, 2003, 9:50pm UTC](https://boards.straightdope.com/t/amazing-optical-illusion/211177/22 "2003-11-03T21:50:14Z")
I’ve seen this one before, so I know they’re the same, but it is a cool illusion. ---
**Author:** ![Algernon](https://avatars.discourse-cdn.com/v4/letter/a/a183cd/32.png) [@Algernon](https://boards.straightdope.com/u/Algernon)\ **Post date:** [November 3, 2003, 9:52pm UTC](https://boards.straightdope.com/t/amazing-optical-illusion/211177/23 "2003-11-03T21:52:47Z")
[Here are some more illusions of the same nature](http://www-bcs.mit.edu/gaz/main-frameset.html), built via animation so you can see that the illusion is really just an illusion. ---
**Author:** ![KidCharlemagne](https://avatars.discourse-cdn.com/v4/letter/k/ed8c4c/32.png) [@KidCharlemagne](https://boards.straightdope.com/u/KidCharlemagne)\ **Post date:** [November 3, 2003, 10:29pm UTC](https://boards.straightdope.com/t/amazing-optical-illusion/211177/24 "2003-11-03T22:29:36Z")
Wow. I just saw a similar optical illusion that used a checkerboard of pictures of Michael Jackson and a pale-faced bonobo. They looked different but if you put one on top of the other they were the same! ---
**Author:** ![Dunderman](https://avatars.discourse-cdn.com/v4/letter/d/ecb155/32.png) [@Dunderman](https://boards.straightdope.com/u/Dunderman)\ **Post date:** [November 4, 2003, 12:19pm UTC](https://boards.straightdope.com/t/amazing-optical-illusion/211177/25 "2003-11-04T12:19:51Z")
I first saw this at randi.org, wasted my time in Paint, and was utterly amazed. It took me quite some time to convince Pricegal that the squares are in fact exactly the same shade of grey. It’s a weird world. ---
**Author:** ![LifeOnWry](https://avatars.discourse-cdn.com/v4/letter/l/96bed5/32.png) [@LifeOnWry](https://boards.straightdope.com/u/LifeOnWry)\ **Post date:** [November 4, 2003, 1:25pm UTC](https://boards.straightdope.com/t/amazing-optical-illusion/211177/26 "2003-11-04T13:25:12Z")
**Algernon** - that link is the coolest! I’m going to try to recreate this effect with my clay and see what kind of neat beads I can get out of it. ---
**Author:** ![scr4](https://avatars.discourse-cdn.com/v4/letter/s/59ef9b/32.png) [@scr4](https://boards.straightdope.com/u/scr4)\ **Post date:** [November 4, 2003, 2:24pm UTC](https://boards.straightdope.com/t/amazing-optical-illusion/211177/27 "2003-11-04T14:24:43Z")
> [@](#): > > \*Originally posted by chrisk72 \* > \*\*I used Paint to remove the letters by pasting a copied section of the A block and that doesn’t help - if anything the difference seems greater without them. Too weird! \*\* I tried the same, and [here’s the altered image](http://members16.clubphoto.com/_cgi-bin/getImage.pl?imgID=25603661-3018&trans=). I agree, the difference seems even greater. Amazing. ---
**Author:** ![scr4](https://avatars.discourse-cdn.com/v4/letter/s/59ef9b/32.png) [@scr4](https://boards.straightdope.com/u/scr4)\ **Post date:** [November 4, 2003, 2:27pm UTC](https://boards.straightdope.com/t/amazing-optical-illusion/211177/28 "2003-11-04T14:27:01Z")
Hmm, sorry, I don’t know why the link doesn’t work. Anyway it doesn’t look all the different without the captions. ---
**Author:** ![SanguineSpider](https://avatars.discourse-cdn.com/v4/letter/s/e9a140/32.png) [@SanguineSpider](https://boards.straightdope.com/u/SanguineSpider)\ **Post date:** [November 4, 2003, 3:56pm UTC](https://boards.straightdope.com/t/amazing-optical-illusion/211177/29 "2003-11-04T15:56:23Z")
\*\* This is the devil’s work!!!\*\* Cast out the wicked one from your hearts and be cleansed! I’m so kidding… that’s a neat illusion. ---
**Author:** ![rsa](https://avatars.discourse-cdn.com/v4/letter/r/839c29/32.png) [@rsa](https://boards.straightdope.com/u/rsa)\ **Post date:** [November 4, 2003, 10:09pm UTC](https://boards.straightdope.com/t/amazing-optical-illusion/211177/30 "2003-11-04T22:09:00Z")
> [@](#): > > \*Originally posted by Shagnasty \* > I still choose not to believe it. I won’t even waste my time with Paint because I KNOW that it isn’t true. [rubs hands gleefully] Perhaps a wager? $100, $1000, $10,000? Your choice… [/rhg] ---
**Author:** ![LifeOnWry](https://avatars.discourse-cdn.com/v4/letter/l/96bed5/32.png) [@LifeOnWry](https://boards.straightdope.com/u/LifeOnWry)\ **Post date:** [November 4, 2003, 11:50pm UTC](https://boards.straightdope.com/t/amazing-optical-illusion/211177/31 "2003-11-04T23:50:51Z")
> [@](#): > > \*Originally posted by Frank #2 \* > \*\*[Still not convinced?](http://www.moderngroup.com/images/checkershadow.jpg) The squares are the same color: 107, 107, 107 in RGB format. \*\* Ah-HAH! I just put my two index fingers on the monitor, along the sides of the little strip that **Frank #2** added and – I’ll be a sunuvagun! You can actually watch the illusion go away! This is so cool! (I know. I am such a dork.) ---
**Author:** ![if6was9](https://avatars.discourse-cdn.com/v4/letter/i/e47c2d/32.png) [@if6was9](https://boards.straightdope.com/u/if6was9)\ **Post date:** [November 5, 2003, 12:02am UTC](https://boards.straightdope.com/t/amazing-optical-illusion/211177/32 "2003-11-05T00:02:57Z")
Eww! That weird, **LifeOnWry**! It’s the shadow of the green cylinder that does this. And the illusion of the “darker” square surrounded by lighter squares and vice-versa. [Previous page](https://boards.straightdope.com/t/amazing-optical-illusion/211177.md?page=1)