Slashdot Mirror
The Goggles, They Do Nothing
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 ./."
Use the cache so more people can see! Thanks!
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.
The page is on a .jp uni server so they SHOULD be able to handle the herd of rhinos that is ./.
:)
He should have called us a "herd of nerds"
-thewldisntenuff
My MythTV HowTo
It's nearly dead. That is what you get for tempting fate in your fscking summary. ;->
"Nothing for you to see here. Please move along."
Some of these are on display on out-of-the-way doors in the Exploratorium science museum in San Francisco. It looked like some of the staff members had printed them out and posted them there for their own personal satisfaction, but a lot of the visitors were finding themselves distracted from the bigger attractions to stare at these.
It was trippy to have the spinning snakes one as my wallpaper for some time, but at six by four feet, it really does begin to make you a little dizzy.
let's try ascii art .o. o.oo .o. o. .o o.
. o.o.. o.o
if you shake your head you can see the dots moving!
and no headache! w00t!
sure, today is a slow news day, what boring. gee.
Here here
"The page is on a .jp uni server so they SHOULD be able to handle the herd of rhinos that is ./." Or Not.
I'm in cafe nursing a severe hangover. That shit almost made me yak all over my laptop.
Because I could...nay..have found myself staring at these for periods, and assummed I will get a bit of headache, of that they are bad for my vision (thus forcing myself to stop).
"You know you don't act like a scientist, you're more like a game show host." Dana Barret
Yes, your eyes will shortly fall out of their sockets.
Hopefully you're able to read this before that happens.
... who is coming in to a new background image on their machine.
Some of these images have been copied elsewhere. Google Image Search shows some of the pictures, such as rotsnake2.gif
Bill Stewart
New Fast-Compression-only CPR http://preview.tinyurl.com/dy575ks
"The page is on a .jp uni server so they SHOULD be able to handle the herd of rhinos that is ./."
Baby vs Rhino.
That baby... er server doesn't have a prayer.
that would be a japanese university server. you must be american.
As always, mirrors are here: MirrorDot.
~Jay
Check out the awesome images of Japan/Kyoto. IMNSHO, they're far more interesting than the optical illusion stuff.
Thanks for making them available, Mr Kitaoka.
I would like to Slashdot a server that hosts a large number of images. That should spice things up.
The laboratory of Dale Purves at the Duke University Medical Center is also researching visual illusions. Check out www.purveslab.net for interactive animations (yes, it's a Flash site).
He's also written a book entitled Why We See What We Do: An Empirical Theory of Vision.
Explanation (the peripheral drift illusion) (PDF file)
that?
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!
It's excellent for what it does, and it beats the pants off Word .doc format as a distribution format.
Napster-to-go says "Fill and refill your compatible MP3 player", which is a lie. It's not MP3. It's WMA with DRM.
I had seen this before and was looking for a custom wallpaper manufacturer to have the Rotating Snakes illusion made into wallpaper for my bathroom. Just for the entertainment of having my friends to to go to the bathroom after a long night of drinking...hilarity ensues.
Actually, the quote is:
"Ach, mein eyes! The goggles, they do nothing!"
You need to stare at it for a bit for it to work... a casual glance won't do it. Now maybe if it was on the front of a girl's tshirt...
:) Guy stares... 5 seconds later... epileptic seisure!
Actually that might be a good protection for girls that don't like guys staring at their chests
Just use this. Just saw it on Wired. They mirror every website Slashdot news includes.
We prefer the term "crash" to refer to a gathering of us... herds are so... blaise.
Congregations of other animals have different terms...
A murder of crows
A gaggle of geese
A pounce of cats
An ambush of tigers
More can be found here.
These optical devices could potentially be quite useful... going to have a play :-).
Engineering is the art of compromise.
So, just exactly who IS "./" ?
... should use PNG instead of GIF. First, as we all know, PNG aren't animated, so no-one will be fooled into thinking that maybe these are animated gifs ;-)
But jesting aside; 310097 rotsnake.gif vs 262253 rotsnake.png, 46.7KB saved for that single image, or about ten seconds download time for a modem user.
Belief is the currency of delusion.
Chairs are for sitting, PDF is for printing
I completely agree with that, but decided to click the link anyway. Read halfway down, glanced over to the side, and what do I see?
Free Chapter from "Son of Web Pages That Suck" (PDF from Sybex via ftp 3.25Mb)
Thank you kind sir, for the hearty laugh.
.
Ramachandran's optical illusions
Johansson's point-light walker (Flash animation)A very cool illusion is available here. Try looking inside of the triangle defined by the yellow dots, as the blue dots wander around. After a few moments, the yellow dots begin to blink in and out of your visual consciousness. It's quite a powerful effect.
Check out this image. The squares marked "A" and "B" are the same shade of grey. If you don't believe me, open the page in a paint program and check out the colors.
I've always wondered about this. We know about those grid illusions where the intersections appear to be darker than they are, or the "rotation" illusion in the article. But can you undo the illusion? Can you offset the color and remove the "dark intersection" problem? Can you curve shapes the opposite way and undo illusions of curve?
Now I have a headache.
"that would be a japanese university server. you must be american."
Look! Mozira!! RUN!!!
"Derp de derp."
PDF is an open standard.
My other car is first.
lol. But sriously, the JPEG artifacts cause the values to be *slightly* off on some pixels. But I encourage you to cut out the A square and drag it next to the B square. When they're next to each other, they look exactly the same.
rotsnakes.ai(4MB)
grammar-lesson free since 1999. (rescinded - 2005)
One of my customers had the computer sitting in the corner, so as you face the computer, you're also facing the corner.
The trouble was, the wallpaper was vertical blue and white stripes, each about 1 inch (2,5 cm) wide, covering both walls.
Sitting at the computer, seeing the striped wallpaper in your peripheral vision, you would get the unnerving feeling the monitor was attacking you, slowly approaching you, menacingly. (It didn't help that the monitor was on an elevated platform, so you actually had to look up at it.)
After a few years, they covered the wallpaper with wood paneling.
Give me my freedom, and I'll take care of my own security, thank you.
There is a black and white round one called "Uzumaki Anpan". Uzumaki means whirlpool, coil, eddy or vortex. Something spinning around (uzu means swirl, maki means wrap as in wrapped sushi). As for the second term, An is sweet black miso paste, and pan is a loan word from the Portuguese for bread. Anpan is a hugely popular round puffy donut with the sweet paste inside. So the title roughly means, Vortex Jelly Donut. Rudy Rucker probably has some good words for it, I'll borrow one: Yarrr!
That has to be the nicest color illusion I've seen. I believe that the illusion is so good, that the only reason the dropper shows both squares being (170, 170,170) is that even the GIMP was fooled by the shadow.
If you like this stuff, and especially if you like it explained, be sure to pick up a copy of Visual Intelligence by Donald Hoffman. By far the most interesting scientific prose I've read in years.
That said, any brain stimulus that involves coordinating the hemispheres could trigger a seizure if it's in the damaged area. And at that, last I looked at current research, they're saying that the right hemisphere controls the left field of vision on both sides and vice versa for the right, entirely contrary to the earlier theory that the each hemisphere of the brain controlled one eye. *wry grin* Where it gets really weird was that it was proven in experiments that each hemisphere handled the input from one eye and now they've proven it the other way. It really makes you wonder how much of our brain's deelopment may rely on how we believe it should work.
This sig has absolutely no significance and serves only to take up screen space and waste the time of the reader.