10-15-2007, 12:39 PM
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#21
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The new goggles also do nothing.
Join Date: Oct 2001
Location: Calgary
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Do frame by frame comparisons, it's not changing. It's just an animated GIF so it loops, it if was changing then the changes would come at very specific intervals.
__________________
Uncertainty is an uncomfortable position.
But certainty is an absurd one.
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10-15-2007, 12:44 PM
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#22
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Redundant Minister of Redundancy
Self-Banned
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I don't buy it either. The shadow that sweeps doesn't relate continually to when she is facing forward or back.
Its well done though.
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10-15-2007, 12:45 PM
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#23
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Redundant Minister of Redundancy
Self-Banned
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Quote:
Originally Posted by photon
Do frame by frame comparisons, it's not changing. It's just an animated GIF so it loops, it if was changing then the changes would come at very specific intervals.
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I'm not a computer expert so I'll just ask.
Could they make a 2 simple gifs (one CW one CCW, each lasting for 1 'rotation') and write a program to alternate between the two after a random number of rotations?
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10-15-2007, 12:46 PM
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#24
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Franchise Player
Join Date: Sep 2005
Location: Calgary, AB
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Werid, it get it switching back and forth. I don't think the loop is switching because sometimes it will be 5 seconds clockwise, and then later over 20 seconds clockwise before switching.
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10-15-2007, 12:48 PM
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#25
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Resident Videologist
Join Date: Mar 2002
Location: Calgary
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It's definitely legit, I know the guy who made that.
Although it has nothing to do with "left or right brain" use.
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10-15-2007, 12:50 PM
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#26
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The new goggles also do nothing.
Join Date: Oct 2001
Location: Calgary
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Quote:
Originally Posted by CrusaderPi
I'm not a computer expert so I'll just ask.
Could they make a 2 simple gifs (one CW one CCW, each lasting for 1 'rotation') and write a program to alternate between the two after a random number of rotations?
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They could use javascript to switch after a specific amount of time, but not a specific number of rotations, so unless the timing was exact you'd see a visual disruption when they switched most likely.
Disable javascript in your browser or save the GIF and view it through another program to test.
Here's another example of the same kind of illusion, where your perspective can change back and forth. This image is static too. There's a bunch of them like this, it's a well known type of optical illusion.
__________________
Uncertainty is an uncomfortable position.
But certainty is an absurd one.
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10-15-2007, 12:50 PM
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#27
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Franchise Player
Join Date: Apr 2004
Location: Edmonton
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She were a-whirrin' clockwise at first. Later, I could also see the counter-clockwise.
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10-15-2007, 12:51 PM
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#28
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The new goggles also do nothing.
Join Date: Oct 2001
Location: Calgary
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Quote:
Originally Posted by AnthonyCook
It's definitely legit, I know the guy who made that.
Although it has nothing to do with "left or right brain" use.
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Really? That's cool!
Yeah I thought the left/right thing was bogus, since I always see it as clockwise first and I'm more left than right brain.
__________________
Uncertainty is an uncomfortable position.
But certainty is an absurd one.
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10-15-2007, 12:54 PM
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#29
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Resident Videologist
Join Date: Mar 2002
Location: Calgary
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Quote:
Originally Posted by photon
Really? That's cool!
Yeah I thought the left/right thing was bogus, since I always see it as clockwise first and I'm more left than right brain.
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I'm pretty sure 'left and right' brain use in terms of psychology and personality traits are bogus in general.
Anyways, its just an optical illusion, nothing else.
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10-15-2007, 12:58 PM
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#30
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Powerplay Quarterback
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bah! i saw counter clockwise at first but if i stare at the inside foot i can switch it. really cool.
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10-15-2007, 12:59 PM
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#31
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Franchise Player
Join Date: Jun 2004
Location: Vancouver
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i saw clockwise but i'm totally opposite of the description they give. i think i should see counter-clockwise.
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10-15-2007, 01:07 PM
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#32
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Resident Videologist
Join Date: Mar 2002
Location: Calgary
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Quote:
Originally Posted by worth
i saw clockwise but i'm totally opposite of the description they give. i think i should see counter-clockwise.
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Attaching characteristic traits to the lateralization of the brain is a pseudo-science. Don't put any merit it their classification.
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10-15-2007, 01:07 PM
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#33
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Redundant Minister of Redundancy
Self-Banned
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After also looking at it frame by frame I see where the optical illusion happens and how it tricks the brain.
Neat piece of work.
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10-15-2007, 01:08 PM
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#34
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Has Towel, Will Travel
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Quote:
Originally Posted by Ozy_Flame
And it always seems to switch at the precise moment when her leg is in the foreground, obscuring the switch. It's just a trick.
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I'm not sure sure about that. I can make her switch whether a specific foot in in the foreground, background or to the side. The best is when one foot hits the ground. I can make her switch every time her one foot touches down.
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10-15-2007, 01:10 PM
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#35
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Franchise Player
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I only see clockwise.
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10-15-2007, 01:38 PM
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#36
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First Line Centre
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Pretty cool. At first I could only see CW, but after concentrating on the pivoting foot and the shadow for a long time I could switch. After a while it got easier and easier to make the switch.
I can see her going both ways. 
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10-15-2007, 01:42 PM
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#37
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Self Imposed Ban
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Yeah, concentrate on the foot that stays in the same place and just turns....after a while you'll be able to see half-turn clockwise, half-turn counterclockwise and so on.
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10-15-2007, 01:45 PM
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#38
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First Line Centre
Join Date: Mar 2004
Location: Calgary
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Quote:
Originally Posted by Ozy_Flame
And it always seems to switch at the precise moment when her leg is in the foreground, obscuring the switch. It's just a trick.
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I was able to see both. Pretty cool thing although it's hard to tell if it's real or just an illusion.
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10-15-2007, 01:48 PM
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#39
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The new goggles also do nothing.
Join Date: Oct 2001
Location: Calgary
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What do you mean "real or illusion"? The image rotates the same all the time, it's your mind's perception of the image that switches making it appear to go clockwise or counterclockwise.
Here's a good audio one too 
http://www.metacafe.com/watch/859124...udio_illusion/
__________________
Uncertainty is an uncomfortable position.
But certainty is an absurd one.
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10-15-2007, 02:38 PM
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#40
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Franchise Player
Join Date: Dec 2003
Location: Sunshine Coast
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I see it going clockwise but after a little concentration I can change it by blinking.
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