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Play 'Rainbow Illusion' and you may win a $20 gift card
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Play 'Rainbow Illusion' and you may win a $20 gift card
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Welcome to Rainbow Illusion, the fifth and final challenge question of the brain sweeps companion contest! For any first-timers out there here's a reminder of how this works : Each week I post a
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Cat:fc5160c8-a1de-4251-a841-e32065997417Forum:ee697692-a22a-4445-bb07-43ac0932dc3d
Cat:fc5160c8-a1de-4251-a841-e32065997417Forum:ee697692-a22a-4445-bb07-43ac0932dc3dDiscussion:093db756-7a6c-4d32-80e3-fd05edee8921
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Re: Play 'Rainbow Illusion' and you may win a $20 gift card
posted at April 30, 2013 12:18 PM EDT
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Posts: 2
First: April 30, 2013 Last: April 30, 2013 |
I disagree with the last two posters. The same rainbow DOESN'T appear -- it is now reversed when it appears on the wall. The blue is on the outside in the test (with the black dot). The oranges/yellows and reds appear on the outside when you look up and see it on the light colored wall! Pretty cool
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Re: Play 'Rainbow Illusion' and you may win a $20 gift card
posted at April 30, 2013 12:20 PM EDT
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Posts: 1
First: April 30, 2013 Last: April 30, 2013 |
It's called "retinal fatigue," and anyone who had a decent science curriculum in grammar school should have experienced and experimented with this phenomenon before the age of 10. Sheesh. |
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Re: Play 'Rainbow Illusion' and you may win a $20 gift card
posted at April 30, 2013 12:21 PM EDT
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Posts: 2
First: April 30, 2013 Last: April 30, 2013 |
In Response to Play 'Rainbow Illusion' and you may win a $20 gift card: The rainbow that appears on the wall is REVERSED from the one you have us stare at! In the post, the blues are on the outer/upper edge. After staring at it for 20 seconds you see the the opposite on the wall -- the reds/oranges are now on the outer/upper edge! Very cool.... |
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Re: Play 'Rainbow Illusion' and you may win a $20 gift card
posted at April 30, 2013 12:28 PM EDT
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Posts: 1
First: April 30, 2013 Last: April 30, 2013 |
In Response to Play 'Rainbow Illusion' and you may win a $20 gift card: Welcome to Rainbow Illusion, the fifth and final challenge question of the brain sweeps companion contest! For any first-timers out there here's a reminder of how this works : Each week I post a brain teaser challenge question in this forum and you provide an answer in a reply post. We'll collect responses all week up until midnight Thursday, and on Friday the answer will be revealed and a $20 gift card will be awarded at random. A person is eligible to win whether they answer correctly or not. Let's begin... What happens when you stare at this oddly colored arc? Instructions: 1. Stare at the black dot for 20 seconds. 2. Next, look up at the sky or a light-colored wall. Tip: Click on the image to inlarge. credit: Posit Science If you missed the challenge questions we've already completed, feel free to play on your own: week 1: Missing Letters week 2: In Depth week 3: Hermann Grid week 4: Adelson's Illusion Posted by LynneG its the same rainbow. |
