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Very cool variations on a couple of themes. Bidwell's Ghost
incorporates a few adaptations of the visual system as well. Here's
comprehensive set of visual illusions: http://dbeveridge.web.wesleyan.edu/wescourses/2006f/chem348/01/links.htm#Biology%20of%20Vision
C
On Jul 6, 2008, at 5:43 PM, Eric Yuan wrote:
> ISEN-ASTC-L is a service of the Association of Science-Technology
> Centers
> Incorporated, a worldwide network of science museums and related
> institutions.
> *****************************************************************************
>
> I'm curious whether the afterimage effect plays a role in enhancing
> vision,
> such as detecting motion, or widening our effective field of vision
> when we
> scan our surroundings? Maybe straightening out our vision during a
> bumpy
> car ride?
>
> -Eric
>
>
> -----Original Message-----
> From: Informal Science Education Network
> [mailto:[log in to unmask]] On Behalf Of Paul Koenig
> Sent: Sunday, July 06, 2008 8:11 PM
> To: [log in to unmask]
> Subject: Re: [ISEN] Very neat illusion
>
> ISEN-ASTC-L is a service of the Association of Science-Technology
> Centers
> Incorporated, a worldwide network of science museums and related
> institutions.
> ****************************************************************************
> *
>
> It's an afterimage in the eye. I know the Exploratorium has a few
> exhibits/activities based on the same thing. Here's what I found after
> a quick search for more explanation:
> http://www.exploratorium.edu/snacks/bird_in_cage/index.html
> http://www.exploratorium.edu/snacks/afterimage/index.html
>
> It's an effect I know all too well after spending a lot of time with
> anaglyph glasses.
>
> - Paul Koenig
>
> On Jul 6, 2008, at 4:50 PM, [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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>
> Check out the latest case studies and reviews on ExhibitFiles at www.exhibitfiles.org
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Charles Carlson
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exploratorium
3601 Lyon St.
San Francisco, CA 94123
[log in to unmask]
Tel: 415-561-0319
Fax: 415-561-0370
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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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