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The Goggles, They Do Nothing

Posted by michael on from the do-not-view-while-operating-machinery dept.

Suchetha writes "In anticipation of a slow news day i would like to direct the Slashdot hordes to Akiyoshi Kitaoka's Optical Illusions page. The page also has explanations on why/how they occur (in icky PDF format). The page is on a .jp uni server so they SHOULD be able to handle the herd of rhinos that is ./."

7 of 321 comments (clear)

  1. Coral Cache Link! by Anonymous Coward · · Score: 5, Informative

    Use the cache so more people can see! Thanks!

  2. Interesting warning on the site... by daveschroeder · · Score: 4, Informative

    Caution: This page contains some works of "anomalous motion illusion", which might make sensitive observers dizzy or sick. Should you feel dizzy, you had better leave this page immediately.

    Some of the pictures on this website can cause dizziness or might possibly epileptic seizures. The latter happens when the brain can't handle the conflicting information from your two eyes. If you start feeling unwell when using this website, immediately cover one eye with your hand and then leave the page. Do not close your eyes because that can make the attack worse.

  3. Mirror by alienfluid · · Score: 5, Informative

    Here here

  4. No vector files? by Frappuccino · · Score: 4, Informative
    The guy took off the download page for the vector files because too many people were illegally using the files. So what if I wanted to download the Adobe Illustrator file of the roating snakes to print out a giant poster on my Epson 7600?

    Archive.org to the rescue!

    http://web.archive.org/web/20031203215948/www.psy. ritsumei.ac.jp/~akitaoka/download.html/

    This will probably get slashdotted really quick because the archive.org servers are already slow. Someone make a mirror of this page quick so everyone can have a piece!

  5. Mirrordot to the rescue! by nxtr · · Score: 5, Informative

    Just use this. Just saw it on Wired. They mirror every website Slashdot news includes.

  6. Re:My favorite optical illusion by jtriska · · Score: 4, Informative

    Its actually a pretty simple illusion thats both a problem to artists as well as a useful tool.

    Basically, colors always effect other colors. For example, if a gray square is surrounded by black squares, the gray square will seem much brighter than it would sitting next to other tones of gray.

    If you surround the gray square with white squares, the gray square will seem much darker.

    I guess you could call it the color theory of relativity.

    This works with colors, not just with shades of gray. Surround a medium gray square by orange squares, and the gray square will take on a cool blueish hue (blue is complementary/opposite of orange), even if its rgb is 128,128,128.

    In this optical illusion, the shadow cast from the cylinder onto the 'A' squares is affecting the appearance of the 'B' square. Its only the shadow thats causing the illusion.

  7. Re:My favorite optical illusion by gopher_hunt · · Score: 4, Informative

    Here is the original link, along with an explanation of why this illusion works.

    Link