[ale] OT: Optical Illusion.

[Byron Jeff]

On Thu, Sep 15, 2011 at 11:55:04PM -0400, David Tomaschik wrote:
> On 09/15/2011 11:46 PM, Michael H. Warfield wrote:
> > Someone at the meeting tonight asked me to post the URL to the colored
> > spiral optical illusion I had with me.  Here it is:
> >
> > http://topcultured.com/an-illusion-so-impossible-i-had-to-double-check-in-photoshop/
> >
> > The blue and the green strips in the image are actually the exact same
> > color.  June wouldn't believe it so I used gimp to create two squares on
> > a white background in another image and used the dropper tool to fill a
> > square from the blue and a square from the green (hint - start with the
> > blue) and they were both identical.  It's even more astonishing printed
> > on paper where the contrast is higher and the blue seems darker.
> >
> > Mike
> >
> That link is broken.  "Sorry for the delay but TopCultured is getting a
> much needed overhaul. Come back soon!"

Google. cache:

http://webcache.googleusercontent.com/search?q=cache:rOHE3VxIbuoJ:topcultured.com/an-illusion-so-impossible-i-had-to-double-check-in-photoshop/+an-illusion-so-impossible-i-had-to-double-check-in-photoshop/&cd=1&hl=en&ct=clnk&gl=us

> 
> -- 
> David Tomaschik, RHCE, LPIC-1
> System Administrator/Open Source Advocate
> OpenPGP: 0x5DEA789B
> http://systemoverlord.com
> david at systemoverlord.com
> 
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-- 
Byron A. Jeff
Department Chair: IT/CS/CNET
College of Information and Mathematical Sciences
Clayton State University
http://cims.clayton.edu/bjeff