optical illusions

Researchers reproduced reverse-phi motion in the MotionNet system https://scitechdaily.com/artificial-brain-reveals-why-we-cant-always-believe-our-eyes-and-explains-some-perplexing-optical-illusions/ Furthering our understanding of the workings of the brain. :cool:

Not sure is this has come up before, but it popped up on my Twitter feed and is genuinely bizarre. https://mobile.twitter.com/DannyDutch/status/1142068351855943683 I hope you don’t need to be a Twitter member to see it.

I found this pic I made once playing around with a graphics program. It appears to have four orange/magenta, two orange/green and two cyan/magenta parts spiraling out from the center. What are some of your favorites?

I debated between entertainment and science and went with science. Can you see the man’s smiling face? Psychologist shows off incredible illusion I don't get it.

Does anyone know why this works the way it does? I've seen several variations of the trick. http://twitpic.com/7mipik For people who don't want to click, you see what looks like a reverse negative image with a red dot on it. When you stare at the red dot and then look at the wall and blink...

The breaking ball. That wicked curveball that makes a sudden sharp "break" as it nears the plate. Bane of hitters on every diamond. But according to new research, whether or not a curveball "breaks" is not determined by how a pitcher throws it, but rather how the batter observes it. So, is...

This year will be my first TAM. Perhaps some of Jerry Andrus’ three dimensional optical illusions will be on display (For example the Brass Nuts Illusion, Paradox Box, etc) They are truly mind boggling things to see in person, and it will be a highlight of my trip to see them. I plan on...

See this youtube. It talks about optical illusions. Plus one on missing letters. You can still read the words yet many letters are missing. YPlB20a0CQw There is a question at the start. The answer is

Does anyone know that it exists in any of the iphone optical illusion apps? If not, are there any capable programmers that can make one? It seems relatively easy and could be a great centerpiece to a larger package of optical illusions.

Here is an optical illusion that creates the perception of color in a black and white pattern, Benham's disk: http://www.michaelbach.de/ot/col_benham/index.html Does anyone know of any other optical illusions that create color from black and white? ~~ Paul

Hey guys, I was wondering if any of you could offer some insight into the world of optical illusions. I love optical illusions and similar such things, but as a skeptic I'm always asking myself "why" I am seeing what I am seeing. As I have no real knowledge in the area, I can never answer...

Is this Pope John Paul II waving from beyond the grave? Vatican TV director says yes If you missed this appearance, he'll be appearing on a tortilla in Acapulco on Thursday.

First episode of 2007! Possibly not my finest hour thanks to being wined and dined by a listener immediately previous to the show. Download on iTunes or here. Podcast #76 1/3/2007News Items: NeuroLogica Blog, Evolution in Cobb County, 2006 Predictions, Homeopathy in Scotland Your E-mails and...

This was listed on FARK.com a few days ago as "The coolest trick you'll play on your brain today." It's a great optical illusion; I hope you enjoy it as much as I have. http://www.johnsadowski.com/big_spanish_castle.html (Note: It works best if you follow the directions; I swear it's not one...

By request of those on the puzzle section, I am posting the link to this interesting site, which helps explain the genesis of some fascinating optical illusions (as well as being very entertaining) http://www.michaelbach.de/ot/

A while ago, somebody posted a link to the 'moving snakes' optical illusion and I can't find it now. Can anybody point me in the right direction?

Since you guys are all staring at a monitor now, try this. Look intently at the corners of the largest bright solid graphic (an open window or dialog box) and make a LOUD raspberry (a farting sound made from pursed lips). First time I encountered this I thought I had messed up my monitor.

I have noticed something unusual about hal bidlack's current avatar, which features a six-pointed sheriff's star. When I scroll up or down, the star appears to pulsate. In particular, the star appears to shrink slightly when in motion, but it pops back out to full size when the star is...

Regular viewers of this column (OK, I'm getting carried away with pretending to be a journalist) will remember the many threads with cool optical illusions (I didn't start any of them; I was a mere observer). Check out this latest one involving a photograph of Earth's moon as seen from the...