Hatrack River Forum: Cool optical illusion

This is topic Cool optical illusion in forum Books, Films, Food and Culture at Hatrack River Forum.

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Posted by Paul Goldner (Member # 1910) on :

This is pretty good. And the author has a good message at the end.

http://blogs.discovermagazine.com/badastronomy/2009/06/24/the-blue-and-the-green/

Posted by rivka (Member # 4859) on :

Illusion: good. Finding it necessary to use it as a springboard for Life Lesson(s): [Roll Eyes]

.

So I prefer the original (scroll alllll the way down), which is minus some color artifacts from Wordpress and on a page with many other related optical illusions.

Posted by ricree101 (Member # 7749) on :

quote:
Originally posted by rivka:
Illusion: good. Finding it necessary to use it as a springboard for Life Lesson(s): .

So I prefer the original (scroll alllll the way down), which is minus some color artifacts from Wordpress and on a page with many other related optical illusions.

A large amount of Phil Plait's blog's content is devoted to covering skeptical topics.

So a lot of the point in him even bringing up the optical illusion was to point out the unreliability of human perception.

Posted by rivka (Member # 4859) on :

I wasn't comparing his blog post to other blog posts (of his or anyone's). I don't care why he brought it up. And Paul could easily have linked to the original, had the optical illusion been his primary interest.

Posted by Orincoro (Member # 8854) on :

Is it unusual that I can tell they are the same color? I think I would be fooled if I wasn't concentrating, but if you focus on the image and put it into the background, you can see that it is the same.

Posted by Paul Goldner (Member # 1910) on :

Sorry you don't find skepticism worth bringing up when discussing optical illusions, rivka. I do.

Posted by Corwin (Member # 5705) on :

quote:
Originally posted by Orincoro:
Is it unusual that I can tell they are the same color? I think I would be fooled if I wasn't concentrating, but if you focus on the image and put it into the background, you can see that it is the same.

I kind of see that it's the same color (or at least very close colors) in the magnified image and in the broader part of the spiral. The closer I get to the center of the spiral though, the more I see a difference between the two colors.

Posted by Kwea (Member # 2199) on :

Same here. Cool illusion.

Posted by mr_porteiro_head (Member # 4644) on :

I am utterly and completely unable to see that they're the same color, even in the magnified image.