Discover Seattle!

General Category => Discover Seattle! => Topic started by: TehBorken on Feb 15 07 03:38

Title: Impossible to believe, but true
Post by: TehBorken on Feb 15 07 03:38
 Believe it or not, the squares marked 'A' and 'B' are both the same color. Made by MIT Professor of Vision Science Edward H. Adelson.
(//image/checker-shadow-illusion.jpg)

[a  href="vny!://web.mit.edu/persci/people/adelson/checkershadow_proof.html"]vny!://web.mit.edu/persci/people/adelson/checkershadow_proof.html[/a]

 
Title: Re: Impossible to believe, but true
Post by: Russ on Feb 15 07 03:42
what? hoiw? linky with explanation?
Title: Re: Impossible to believe, but true
Post by: Moolah! on Feb 15 07 03:56
This is actually invisible text. You think you're reading this but you're not.
Title: Re: Impossible to believe, but true
Post by: P.C. on Feb 15 07 05:42
Something smells funny with that B square.
Title: Re: Impossible to believe, but true
Post by: TehBorken on Feb 15 07 05:48
 P.C. wrote:
Something smells funny with that B square.

Lol. I didn't believe either it so I pulled it into Corel Draw and cut it up...sure as hell, they're the same color. Even after I was done I could hardly believe it.

 
Title: Re: Impossible to believe, but true
Post by: TehBorken on Feb 15 07 05:50
Also hard to believe, but these two squares are  the same color:
[br style="color: rgb(255, 255, 0); background-color: rgb(255, 255, 0);"][span style="color: rgb(255, 255, 0); background-color: rgb(255, 255, 0);"]..................[/span]     [span style="background-color: rgb(0, 0, 255);"]..................

[/span](//forums/richedit/smileys/Happy/12.gif)
[span style="color: rgb(17, 17, 17);"][/span]
 
Title: Re: Impossible to believe, but true
Post by: P.C. on Feb 15 07 05:53
....and these three letters are really the same

  [FONT size=6][FONT color=#ff0000]N[/FONT]  [/FONT]          [FONT color=#0000ff][FONT size=6]O[/FONT]  [/FONT]           [FONT size=6] [FONT color=#ff00ff]T[/FONT][/FONT]  
Title: Re: Impossible to believe, but true
Post by: Lise on Feb 15 07 07:07
Uhm. *confused* I totally see two very different colors.
Title: Re: Impossible to believe, but true
Post by: kingy on Feb 15 07 07:50
how still dont get how a and b are the same color.
Title: Re: Impossible to believe, but true
Post by: P.C. on Feb 15 07 08:24
THAT one I get.  Because the squares around the B square in the center are darker than the 'dark' sqares, it's the contrast that plays tricks.
Title: Re: Impossible to believe, but true
Post by: tenkani on Feb 15 07 08:25
Yup, you're absotutely right..

I just created proof in Photoshop but due to new security measures I can't upload it until I get home    :(    
Title: Re: Impossible to believe, but true
Post by: Lise on Feb 16 07 10:22
P.C. wrote:
THAT one I get.  Because the squares around the B square in the center are darker than the 'dark' sqares, it's the contrast that plays tricks.[/DIV]
     Ah. Makes sense now.
Title: Re: Impossible to believe, but true
Post by: tenkani on Feb 16 07 10:50
Ugh...I knew I forgot something.

Anyway, if you have photoshop or Microshaft Paint just do a screen cap into it and use the eyedropped to take color samples for teh proof!