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Optical illusions

Optical illusions

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This is one of the most amazing I've ever seen...

http://www.adm.duke.edu/alumni/purves/figure2.html

I've even done a screenshot - pasted it into Paint and deleted all of the image except the two squares and yes they ARE the same brown colour!


There are three others on the same web site:

http://www.adm.duke.edu/alumni/purves/figure1.html
http://www.adm.duke.edu/alumni/purves/figure3.html
http://www.adm.duke.edu/alumni/purves/figure4.html



Anyone any other good ones?

Rhymester

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pretty cool...makes me dizzy

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Originally posted by Rhymester
This is one of the most amazing I've ever seen...

http://www.adm.duke.edu/alumni/purves/figure2.html

I've even done a screenshot - pasted it into Paint and deleted all of the image except the two squares and yes they ARE the same brown colour!


There are three others on the same web site:

http://www.adm.duke.edu/alumni/purves/figure1.html
h ...[text shortened]... tp://www.adm.duke.edu/alumni/purves/figure4.html



Anyone any other good ones?

Rhymester
these sort of things are wierd.

David

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no david, your weared!

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Originally posted by castlewall
weared!
you mean "weird" 😛

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oh be quiet!!!!!!!!

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Originally posted by Rhymester
This is one of the most amazing I've ever seen...

http://www.adm.duke.edu/alumni/purves/figure2.html

I've even done a screenshot - pasted it into Paint and deleted all of the image except the two squares and yes they ARE the same brown colour!


There are three others on the same web site:

http://www.adm.duke.edu/alumni/purves/figure1.html
h ...[text shortened]... tp://www.adm.duke.edu/alumni/purves/figure4.html



Anyone any other good ones?

Rhymester
There are more on a related site: http://www.purveslab.net/