Category Archives: Optical Illusion

Escherian Stairwell Deconstruction

Do you make assumptions?

via Assumptions – YouTube.

Also see: Richard Wiseman – Blog

Amazing Illusions

I love illusions! 🙂

Believers in conspiracy theories and the paranormal are more likely to see “illusory patterns”

By Emma Young via The British Psychological Society – Research Digest

Irrational beliefs – unfounded, unscientific and illogical assumptions about the world – are widespread among “the population of normal, mentally sane adults” note the authors of a new study in European Journal of Social Psychology. It’s been proposed that they arise from a mistaken perception of patterns in the world. But though this idea is popular among psychologists, there’s been surprisingly little direct evidence in favour of it. The new work, led by Jan-Willem van Prooijen at the Free University of Amsterdam, helps to fill the void.

Pattern perception is a crucial cognitive ability. It allows us to identify meaningful relationships between events – such as “red traffic light means danger” or “drinking water quenches thirst”. When people join the dots between events that are in fact unrelated (I wore red socks and aced my exam – they are “lucky socks”), they engage in so-called illusory pattern perception.

To explore whether an adherence to conspiracy theories or a belief in the supernatural really are grounded in illusory pattern perception, the researchers devised a series of studies.
First, they assessed belief in existing, well-known – and also fictitious – conspiracy theories in a group of 264 American adults. The participants were asked, for example, to indicate, on a scale of 1 to 9, how strongly they believed in the statement: “The US government had advance knowledge of the 9/11 attacks”. Their belief in the supernatural was evaluated using a scale that measured agreement with statements like “I think I could learn to read other people’s minds if I wanted to”.

When shown the results of a series of randomly generated coin tosses, people who scored relatively highly on these two scales were more likely to mistakenly perceive patterns – they believed that the series of heads and tails wasn’t random even though it was. “These findings are the first to directly suggest a relationship between belief in conspiracy theories and pattern perception, and [to] conceptually replicate this relationship for supernatural beliefs,” the researchers wrote.

Continue Reading @ The British Psychological Society – – –

Related: Connecting the dots: Illusory pattern perception predicts belief in conspiracies and the supernatural

Sleight Of Hand Coin Trick

I’m a big fan of illusions and well performed magic.

Amazing close up sleight of hand. Apparently the iPhone stopwatch was included in the shot to dispel the idea of editing tricks. I quite liked this one.

illusion: Impossible roof defies gravity

Post by Sandrine Ceurstemont, editor, New Scientist TV

Impossible objects, like those drawn by artist M. C. Escher, don’t seem like they could exist in the real world. But Kokichi Sugihara from Meiji University in Kawasaki, Japan, is well known for building 3D versions of these structures.

Now a new video shows his latest construction: a gravity-defying roof that seems to attract and balance balls on its edge. When the house is rotated, its true form is revealed.

Source: New Scientist TV: Impossible roof defies gravity.

Related: Kokichi Sugihara at Meiji University in Kawasaki, Japan, has… (thekidshouldseethis.com)

This Is Not Yellow

Michael (at VSauce) is always entertaining. This video (made in 2012) is not as intense as his more recent works, but still thought provoking and entertaining. Enjoy 🙂

Quick D: The Magic of Will Tsai

This may be the best CaptainDisillusion video yet.

Captain Disillusion ponders the very concept of magic by taking a close look at the work of one particular illusionist.

The Transparent Man: Quirkology Investigates

10 Ways Your Mind Plays Tricks On You – INTERACTIVE VIDEO!

You Can’t See This (MIND TRICKS)

Science 🙂

The Vanishing

By Quirkology via YouTube

DEBUNKED: Floating China City

Debunked: Floating City Above China | Metabunk

Have you seen the YouTube video of the impossibly large city floating above the fog in the city of Foshan, Guangdong province, China?

Floating City China

As with most phenomenon there is a very logical explanation and the good people over at MetaBunk.org have the explanation.

Click on over to Metabunk to find out how this illusion was achieved! 🙂

Mason I. Bilderberg

DEBUNKED: Amazing Water Trick

I love illusions and i love the secrets behind the illusions. Enjoy 🙂

(To skip some fluff: At 1:15 in the video you can skip forward to 4:20 in the video.)

Help make more videos like this and see behind-the-scenes extras: patreon.com/CaptainDisillusion

As Captain Disillusion attempts to deconstruct a classic viral video by Dan DeEntremont, he is visited by… an old flame.

How Do Optical Illusions Work?

By Inside Science via YouTube

For more information, please visit http://www.insidescience.org/content/…

10 Amazing bets you will always win

By Quirkology via YouTube

The Moon Terminator Illusion

Yup, i’m geeking out over here. Check out this video 🙂

by Vsauce via YouTube

For more information, go to the video description.

What Colour Is This Dress? (SOLVED with SCIENCE)

By AsapSCIENCE via YouTube


By BuzzFeedBlue via YouTube

The Incredible Candles

Richard Wiseman comes through with another great illusion. 🙂

By Quirkology via YouTube

10 Secrets Behind Harry Houdini’s Greatest Illusions

By Steve Wynalda via Listverse

houdini 1140There is an unwritten rule among magicians never to reveal how a trick is done. So when a 2004 exhibition explained Harry Houdini’s illusions, magicians around the world were apoplectic. David Copperfield called it a breach of magic protocol, and performers declared that they would boycott the exhibition. Many claimed to still use Houdini’s tricks themselves.

But Harry has been dead nearly 90 years. Despite their claims, few modern illusionists use his dated techniques. And the great magician’s secrets had been revealed decades earlier. He had been in his grave just three years when his team began spilling the beans.

This list is for those who want to know Houdini’s secrets. Those who don’t want to know should stop reading now.

10 • The Radio Of 1950

Houdini developed the “Radio of 1950” illusion for his evening shows from 1925 until his death the following year. The radio was a novelty at the time, and the act featured what Houdini said the radio would be like in 1950.

According to Dorothy Young, Houdini’s assistant, the great magician began by introducing a large table with a tablecloth that fell halfway down the table’s legs. Houdini walked around the table, lifting the tablecloth to show that there were no mirrors or anything else under the table.

Then assistants placed on the table a giant radio approximately 2 meters (6 ft) long and 1 meter (3 ft) high and wide. The front of the radio had huge dials and double doors. Houdini opened the doors to show that there was nothing inside except coils, transformers, and vacuum tubes. He closed the doors.

Houdini adjusted one of the dials until a radio station tuned in. The radio announcer said, “And now, Dorothy Young, doing the Charleston.” The top of the radio flew off, and out popped a young assistant, who jumped down and danced the Charleston.

“Tune in to any station and get the girl you want,” Houdini said. “No, gentlemen, it is not for sale.”

The Secret:

The key to the illusion was the table. Called a “bellows” table, it had two table tops. The upper top had a trap door that opened upward. The lower top hung from the upper by springs that dropped under Ms. Young’s weight without going below the skirt of the tablecloth.

Young was inside the radio when it was set on the table. She then opened the trap and slid into the bellowed area between two table tops and waited there as Houdini showed the radio’s empty interior. While the master magician dialed the radio station, she simply climbed back into the radio.

The image above is of Houdini’s younger brother, Theodore “Dash” Hardeen, demonstrating Houdini’s radio with assistant Gladys Hardeen. Hardeen purchased the radio from his brother’s estate. Dorothy Young lived to be 103 and died in 2011.

9 • Metamorphosis

Houdini performed the “Radio of 1950” illusion at the end of his career (and life), but he performed the “Metamorphosis” illusion at the beginning of his career, when he and his wife Bessie took their act on the road in 1894. Houdini didn’t invent the illusion, but earlier versions of the acts had featured two men changing places. Houdini exchanged places with his wife. His version became a sensation, catching the attention of the Welsh Brothers Circus. In 1895, the circus took the Houdinis on tour.

The illusion was fairly complicated. Houdini’s hands were bound behind him, and he was placed in a sack that was knotted closed. The sack was placed inside a box, locked, and strapped closed. The box was placed in a cabinet with a curtain.

Bessie stepped into the cabinet and drew the curtain closed. She then clapped three times. On the third clap, Houdini drew back the curtain, and Bessie was gone. She was found in the sack in the box, with all the locks and straps still in place and her hands bound behind her.

The Secret:

The secret of the illusion is surprisingly simple: practice. First, Houdini was an expert on ropes and knots, and his hands were tied by a knot easily slipped. By the time the sack was pulled over his head, his hands were free. The sack had eyelets around the top edge that allowed the rope to feed inside and outside the bag. Houdini simply pulled on the rope from the inside to loosen it.

After Houdini was placed in the box, he wiggled out of the sack while Bessie locked and strapped the box lid. Once Bessie drew the curtain closed, Houdini slipped out through a rear panel in the box. Contrary to the audience’s assumptions, Houdini clapped, not Bessie. He clapped once then helped Bessie climb into the box through the rear panel (without disturbing the locks or straps).

On the third clap, Houdini opened the curtain. While he unlocked and unstrapped the box, Bessie, inside, wiggled into the sack and slipped the ropes around her wrists. Harry and Bessie practiced so thoroughly that Houdini was out and Bessie in his place in just three seconds.

8 • The Hanging Straitjacket Escape

This act was born out of sibling rivalry. Houdini’s younger brother Hardeen had his own show, and both brothers were performing escapes from straitjackets behind screens. When one audience demanded that Hardeen escape in front of them, he obliged and received a standing ovation. When Hardeen told his older brother, Houdini decided he had to outdo his brother and developed the Hanging Straitjacket Escape. He frequently performed the act a few hours before his evening shows to draw a bigger audience.

Houdini usually performed this out on the street above a large crowd. He was strapped into a straitjacket in front of the crowd, his ankles bound. A crane lifted him up so that the audience could see what he did, enforcing the impression that there was no trick to the feat.

The Secret:

Houdini himself revealed how he escaped from straitjackets in his 1910 book Handcuff Escapes. The key was acquiring slack inside the jacket as it was strapped on.

As the jacket slid onto his arms, Houdini made sure his arms were crossed—not folded—across his chest, his stronger right arm on top. As the jacket was brought around the back, Houdini pinched and pulled outward to loosen material around his chest. As the jacket was cinched and tightened, Houdini held on to this slacked material. As the jacket was buckled in the back, Houdini took a huge breath to expand his chest. Once the jacket was in place, Houdini had a fair amount of wiggle room in front.

Once in the air, upside down, Houdini used his strong arm to violently force his weak (left) elbow to the left and away from the body. This forced the slack around the right shoulder, allowing Houdini to pull the right arm over his head. Being upside down actually helped: He used gravity to pull that arm over his head.

“Once having freed your arms to such an extent as to get them in front of your body,” Houdini wrote, “you can now undo the buckles and the straps of the cuffs with your teeth.” Once the cuffs were freed, Houdini unbuckled the neck, top, and bottom buckles. Once they were undone, Houdini slipped his arms free and wiggled out of the jacket. Despite popular belief, dislocating the shoulder was not usually necessary, and Houdini only did it as a last resort.

Houdini became so adept at this trick that he reduced his escape time from half an hour down to three minutes. For those occasions when a specialized straitjacket was strapped on, Houdini was not above palming a tool to cut the straps and buckles.

MORE – – –

How The Ames Room Illusion Works

Did somebody say optical illusion? This is a classic illusion explained. 🙂

By Scientific American via YouTube

In 1934, ophthalmologist Adelbert Ames, Jr. devised a room that pushes the boundaries of human perception. Visit a virtual version of the now famous Ames room, as Scientific American Mind editor Ingrid Wickelgren explains how it works.

Brain Game: Motion-induced blindness

If you know me you know i like a good illusion. Exposing flaws in the brain is fun!

Here is a good one from Mighty Optical Illusions

Keep staring at the flashing green dot, and the yellow dots will fade or disappear due to motion-induced blindness.

motion-induced blindness

Related:

The Magical Match

This is a pretty cool trick from Richard Wiseman via YouTube

Moving Illusions

As many of you know, i LOVE optical illusions. Not just because of their visual impact, but also because of the insights it can give us into the workings of our brain, another favorite topic of mine.

This is one of my favorite YouTube channels because they always post something interesting.

Check it out. 🙂

MIB


Via ▶ Moving Illusions – YouTube

Zach King’s ‘Magic’ Vine Compilation

Nothing conspiratorial in this post . . . just pure fun! Enjoy 🙂

Via FarlyTeem – YouTube

The Shining Optical Illusion

By via Mighty Optical Illusions

I just found an optical illusion that actually threw me off a little bit. I stared  at this image, wondering what the optical illusion was and I came close to closing out of it and dragging it to the recycle bin, but I decided to post it. I was a bit shocked when I realized what happened. Stop reading this text right now, scroll down and patiently watch this optical illusion and you’ll see exactly what I’m talking about. No cheating, go look right now!

The-Shining-Optical-Illusion

Now, this is a pretty cool picture and it’s taken from a movie that I really enjoy: The Shining. You see, I’m a pretty big fan of horror movies and this is definitely a creepy movie. If you’re a fan of horror movies, you’ll know that this is a classic one. Even though I liked this image, I didn’t know if it would work well on the site, but then I remembered that this is actually an optical illusion. You see, these are called cinemagraph optical illusions. If you like this image, you should use it on a message board or anywhere you’re active online. It will definitely catch people off-guard and they will love it.
[END]

Pareidolia controls your brain!!!!

Introduction by Mason i. Bilderberg (MIB)

How many times have you heard a paranormal investigator claim to see faces and images of the deceased in everything from a cinnabon swirl to a waft of smoke rising from a candle? Are they seeing the deceased? No. What they’re experiencing is a nearly uncontrollable urge by our brains to seek out and identify patterns. Especially human faces. This phenomenon has a name . . . Pareidolia:

Pareidolia

«A psychological phenomenon involving a vague and random stimulus (often an image or sound) being perceived as significant. Common examples include seeing images of animals or faces in clouds, the man in the moon or the Moon rabbit, and hearing hidden messages on records when played in reverse.» – Wikipedia

«. . . a type of illusion or misperception involving a vague or obscure stimulus being perceived as something clear and distinct.

«Under ordinary circumstances, pareidolia provides a psychological explanation for many delusions based upon sense perception.» – The Skeptic’s Dictionary

pareidolia 727_250px

How powerless are we to our own brains? Look at the image to the right and try to NOT see a very happy thermostat. Bet you can’t!!!

See? Our brains are hardwired to seek out and find faces.

Just HOW hardwired are we to see faces where none exist? Look at the following montage of photos and try to NOT see faces. Prepare to lose control of your mind to the power of pareidolia!!!! Bwahaha!!!!!!

Mason I. Bilderberg (MIB)


By animator and artist Aiden Glenn of Pizza and Pixels

See more images like this.

Tetrahedron Optical Illusion

By via Mighty Optical Illusions

Many people have a hard time grasping what the meaning behind an optical illusion really is. I am no exception to the rule although I try my best to decipher the true meaning behind these works of art! Depending on the illusion, I can sit there for what seems like forever and never really get to the bottom of it. This Tetrahedron wasn’t any different for me. After looking at it for a little while, I still couldn’t quite grasp what the whole point of it was. It only appeared to be a spinning triangle that boasted a variety of colors in the image itself.
Tetrahedron
You tell me. What did you get out of this animated gif? Am I totally missing something in this simplistic piece of art? Did you notice how the color changes as the Tetrahedron spins around? The way the light reflects through the image is pretty cool and not something I would have ever thought of on my own. In reality, this thing is so simple that it shouldn’t be as intriguing as it is. Yet, I find myself sitting here and staring at the thing as it rotates round and round changing color along the way.

From green to brown to green to brown, the color changing technology in this Tetrahedron is something that you have to watch and observe to gain a full understanding of the illusion. Even though it looks like a triangle to me, that doesn’t mean you are going to think the same thing. Everyone has their own opinion on what optical illusions are cool and which ones they find boring or uninteresting.  Take the time to explore this rotating shape and see what you get out of it. Maybe you will see something that I didn’t, but for me, it really was something simple and amazing all at the same time.


[END]

Bill Malone presents “Sam the Bellhop”

I am a HUGE fan of magic, especially slight of hand. This is one of the best card tricks i’ve seen in a long while. 🙂

Mason I. Bilderberg (MIB)


Via ▶ Bill Malone presents “Sam the Bellhop” – YouTube.

Bill Malone’s signature trick. One of the most entertaining card tricks of all time!

Miss Ping Debunk – YouTube

A great debunking. 🙂

MIB


By CaptainDisillusion via YouTube

▶ Honda Illusions, An Impossible Made Possible

If you know me, you’ll know why i love this video – i love optical illusions. Check it out.

MIB


Via HondaVideo – YouTube.


Here is how they created these effects:

Image Authentication and Forensics – The Moon Landing Photos

By Hany Farid via Image Authentication and Forensics | Fourandsix Technologies

By some counts a surprising number of people believe that the 1969 moon landing was a hoax. These dis-believers point to, among other things, purported inconsistencies in some of the moon landing photos. I’ll describe the application of a new forensic technique that refutes some of these claims.

Shown below is the iconic photo of Buzz Aldrin in which the physical plausibility of the lighting and shadows has been called into question.

moonlanding

I have previously described how cast shadows in an image can be analyzed to determine if they are consistent with a single light source. In order to determine if shadows are authentic, we connect points on a shadow to their corresponding points on the object. These lines should all intersect at a single point (or in the special case, be parallel) — this point is the location of the light source projected into the image. The application of this forensic technique (as shown here) requires a clearly defined shadow to object pairing (e.g., the tip of a cone). Such shadows in the above photo are in short supply thus limiting the application of this forensic technique.

In collaboration with Dr. Eric Kee (Columbia University) and Prof. James O’Brien (UC Berkeley) we recently developed a new forensic technique that can be applied to ambiguously defined shadows [1]. In this analysis, we start at any point on a shadow and draw a wedge-shaped constraint that encompasses all parts of an object to which the shadow may correspond. Shown below is one such constraint. The constraint encompasses the entire sphere because there is no systematic way of reasoning about which part of the sphere is associated with a particular spot on the shadow.

moonlanding2

In the above figure, the shaded red region constrains the projected location of the light source. While obviously not as specific as a single line constraint, this approach allows us to analyze all cast shadows in an image.

Because we can now handle ambiguous shadow-object pairings, we can also exploit attached shadows to determine the location of the light source. An attached shadow occurs when an object occludes the light from itself (e.g., a non-full Moon). Shown below, for example, is an attached shadow on the sphere’s surface. The line that is tangent to an attached shadow constrains the projected location of the light source to be on the illuminated side of the object.

moonlanding3

Multiple cast and attached shadow constraints can be specified in an image. If the shadows are physically correct, then all of the constraints will share a common intersection (this consistency check is automatically determined using standard linear programming). Any violations of these constraints is evidence of photo tampering.

Shown below is the result of this new shadow analysis applied to the moon landing image. The cast shadow constraints are shown with solid red lines and the attached shadow constraints are shown with dashed lines. All of the constraints are consistent (the triangular region outlined in black denotes a common intersection). Despite some claims to the contrary, the lighting in this spectacular photo is physically consistent.

moonlanding_analysis

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[1] Eric Kee, James O’Brien and Hany Farid. Exposing Photo Manipulation with Inconsistent ShadowsACM Transactions on Graphics, 32(4):28:1-12, 2013.

[2] Eric Kee’s presentation at SIGGRAPH, 2013.


[END] via Image Authentication and Forensics | Fourandsix Technologies

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