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templar654
Bipolar (III) Inmate

From: Aiur, the Tarsonian Galaxy
Insane since: Apr 2004

posted posted 04-20-2004 08:59

See if you guys can figure out these images...


Is the bottom line as long as the top line?


Which girl is taller? Measure and find out?


Is the brim wder than the height of the hat?


Do the scratches make the long lines slant?


Can you work out where the middle bar starts?

poi
Paranoid (IV) Inmate

From: France
Insane since: Jun 2002

posted posted 04-20-2004 11:17

A search for "Optical illusion" returned ( among others ) Nothing's Moving!

InI
Paranoid (IV) Mad Scientist

From: Somewhere over the rainbow
Insane since: Mar 2001

posted posted 04-20-2004 11:46

The poster has demanded we remove all his contributions, less he takes legal action.
We have done so.
Now Tyberius Prime expects him to start complaining that we removed his 'free speech' since this message will replace all of his posts, past and future.
Don't follow his example - seek real life help first.

templar654
Bipolar (III) Inmate

From: Aiur, the Tarsonian Galaxy
Insane since: Apr 2004

posted posted 04-20-2004 12:50

I don't know why but this page don't load
http://xavier.tamu.edu/students/rar7655/web/images/att33676.gif

poi
Paranoid (IV) Inmate

From: France
Insane since: Jun 2002

posted posted 04-20-2004 13:00

The Rods and Cones of the Human Eye
The Retina of the Human Eye

As a side note, I knew that red, green and blue don't have the same impact on light intensivity but I didn't realised it had a biological reason
IMHO, the moving illusions are due to the relative movement. I mean, when you look somewhere else on the screen even few milimeters away the whole environment moves, but the patterns of the optical illusion kinda drive your eyes in opposite directions and introduce the effect of relative movement. That effect is increased when you scroll the page and thus keep some areas stable like the browser toolbars and co.

[edit]

templar654: The URL you mentioned is on a .edu domain, and requires an authentication to access http://xavier.tamu.edu/students/ . The link may have worked in the past, but the sys.admins certainly forbid hotlinking after some abuses.

[/edit]



(Edited by poi on 04-20-2004 04:15)

InI
Paranoid (IV) Mad Scientist

From: Somewhere over the rainbow
Insane since: Mar 2001

posted posted 04-20-2004 13:13

The poster has demanded we remove all his contributions, less he takes legal action.
We have done so.
Now Tyberius Prime expects him to start complaining that we removed his 'free speech' since this message will replace all of his posts, past and future.
Don't follow his example - seek real life help first.

poi
Paranoid (IV) Inmate

From: France
Insane since: Jun 2002

posted posted 04-20-2004 13:21

Indeed there's some subtle movement on the image even when I stare at it. But it, and the high resolution perceived, is certainly due to the constant and subtle movements of the eye as stated in the Cone Details

quote:
The cones are responsible for all high resolution vision. The eye moves continually to keep the light from the object of interest falling on the fovea centralis where the bulk of the cones reside.



InI
Paranoid (IV) Mad Scientist

From: Somewhere over the rainbow
Insane since: Mar 2001

posted posted 04-20-2004 14:32

The poster has demanded we remove all his contributions, less he takes legal action.
We have done so.
Now Tyberius Prime expects him to start complaining that we removed his 'free speech' since this message will replace all of his posts, past and future.
Don't follow his example - seek real life help first.

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