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Subject:
Re: Very neat illusion
From:
Tina Crimp <[log in to unmask]>
Reply To:
Informal Science Education Network <[log in to unmask]>
Date:
Mon, 7 Jul 2008 12:15:01 +0100
Content-Type:
text/plain
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ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
*****************************************************************************

I accidentally moved the mouse before actually starting to stare at the
image.  By simply doing this, the image changed to yellow and blue.  Perhaps
it's not the after-image effect after all.

Tina Crimp
Techniquest
Cardiff, Wales, UK
[log in to unmask]


On 07/07/2008 00:50, "[log in to unmask]" <[log in to unmask]>
wrote:

> ISEN-ASTC-L is a service of the Association of Science-Technology Centers
> Incorporated, a worldwide network of science museums and related institutions.
> *****************************************************************************
> 
> Dear all,
> 
>  
> 
> My son sent me an optical illusion unlike any I've seen before.  I
> thought you would enjoy it.  Does anyone know what is happening in the
> eye/brain to make this work?
> 
>  
> 
> http://www.johnsadowski.com/big_spanish_castle.php
> 
>  
> 
> Dennis
> 
> "Work hard to find something that fascinates you. When you find it you
> will know your lifework" -- Richard Feynman
> 
> Dennis Schatz
> 
> Senior Vice President for Strategic Programs
> 
> Pacific Science Center
> 
> 200 Second Ave. No.
> 
> Seattle, WA 98109
> 
> Phone - 206-443-2867
> 
> Fax - 206-443-3631
> 
> www.dennisschatz.org <http://www.dennisschatz.org>
> 
> 
> ***********************************************************************
> For information about the Association of Science-Technology Centers and the
> Informal Science Education Network please visit www.astc.org.
> 
> Check out the latest case studies and reviews on ExhibitFiles at
> www.exhibitfiles.org.
> 
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-- 
Tina Crimp, Partnerships Manager
Techniquest, Stuart Street, Cardiff, UK. CF10 5BW
Tel: +44 (0) 29 20 475 475 ext 207
Fax: +44 (0) 29 20 482 517
Web: http://www.techniquest.org

Techniquest is a Company Limited by Guarantee,
registered in England and Wales, no. 1955696
It is a registered charity, no. 517722

***********************************************************************
For information about the Association of Science-Technology Centers and the Informal Science Education Network please visit www.astc.org.

Check out the latest case studies and reviews on ExhibitFiles at www.exhibitfiles.org.

The ISEN-ASTC-L email list is powered by LISTSERVR software from L-Soft. To learn more, visit
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To remove your e-mail address from the ISEN-ASTC-L list, send the
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