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#170614 - 10/15/07 01:08 AM
Re: Since No One Wants to Play Hogwash...
[Re: Faldage]
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Joined: May 2002
Posts: 1,529
themilum
veteran
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veteran
Joined: May 2002
Posts: 1,529
Aladamnbama the most watered s...
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Einstein, Schmeinstien. The question is not what causes the illusion of the change of direction of her spin. but what causes the illusion of a direction at all. Faldage, Faldage, Faldage. If there is percieved movement at all it must be directional. All movement is directional. Change in form is what causes the silhouetted girl (girl to be sure) to appear to turn. But the direction of her turn is Einstonian-Schmeistonian, that is, the direction of movement is relative to the viewer. Get in bed, Faldage. Now rotate your left foot counterclockwise. Now look at the shadow of your rotating foot on the far wall. See? It is rotating counterclockwise too. Ok, keep rotating your foot and twist your body and head untill you are looking back at your rotating foot. Yes, now your foot is rotating clockwise but when you turn head and look at the shadow of your foot on the far wall it still rotates counterclockwise. Now unfold yourself and ask yourself why does the silhouetted girl have a foot shadow? After about 20 minuites you will say "Ah Ha!" and then you will smile and shout " Milo! You magnificient basta...I mean, Milo! I read your book." 
Last edited by themilum; 10/15/07 01:23 AM.
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#170618 - 10/15/07 12:43 PM
Re: Since No One Wants to Play Hogwash...
[Re: Faldage]
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Joined: Jun 2006
Posts: 5,295
BranShea
Carpal Tunnel
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Carpal Tunnel
Joined: Jun 2006
Posts: 5,295
Netherlands, the Hague
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Knitter answers: Pony tail is too close to the central vertical axis, head has no effect. For turns ,shifts and regular shifts focus loosely on more outward details (hands,elbows),shift your focus slightly all the time; observe and do not think,(if one can manage that)it's easyly trainable. I may assume to much, but it works. When you focus on the head she keeps turning one way.
Yes, I'm fond of optical illusions.
Last edited by BranShea; 10/15/07 03:27 PM.
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#170636 - 10/15/07 10:48 PM
Re: Since No One Wants to Play Hogwash...
[Re: BranShea]
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Joined: May 2002
Posts: 1,529
themilum
veteran
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veteran
Joined: May 2002
Posts: 1,529
Aladamnbama the most watered s...
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My apologies, I focused on only one misleading visual trick while the instigators of the twirling girl included several. Yes, I approached the truth and but then turned away smug. Now I see that the illusion works because the human mind tries to transform the visual odd into the visual familiar to facilitate infomation processing. I only focused on the Coriolis effect of the circling i.e. when the shadow of the girl's foot turned clockwise I corrected for the girl's apparent motion and saw her turning counter-clockwise. But it turns out that the devious plan of this study was to disrupt conceptualizations by changing "several" key visual clues as she spun. I promise I will never be wrong again. 
Last edited by themilum; 10/15/07 10:50 PM.
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#170638 - 10/15/07 11:02 PM
Re: Since No One Wants to Play Hogwash...
[Re: Faldage]
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Joined: Apr 2000
Posts: 10,538
tsuwm
Carpal Tunnel
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Carpal Tunnel
Joined: Apr 2000
Posts: 10,538
this too shall pass
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Einstein, Schmeinstien. The question is not what causes the illusion of the change of direction of her spin. but what causes the illusion of a direction at all. okay, I focused really, really hard on the outstretched leg, and for the briefest moment she switched from clockwise to anticlockwise. and I mean briefest! I think it was a trick of the mind. - joe (addlepated) friday
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