Animal silhouettes in negative space between people

I found this on reddit. There's no link to the source. The OP said it was part of a campaign "to promote pet adoption." Read the rest

Cat goes ape for this 2-D optical illusion

Humans aren't the only animals affected by trippy optical illusions, as Ryan Kotzin (aka TheRealSquirrelWhisperer) demonstrates. It's interested to see his cat's eyes move around the page as the effect appears elsewhere.

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Watch MC Escher make art in this short documentary

M.C. Escher: Adventures in Perception (1971) is a 20-minute Dutch documentary about the artist and includes scenes of him working in his studio. From Open Culture:

Obsessed with perspective, geometry, and pattern (Escher described tessellation as “a real mania to which I have become addicted”), his images have, by the count of mathematician and Escher scholar Doris Schattschneider, led so far to eleven separate strands of mathematical and scientific research.

The twenty-minute Adventures in Perception, originally commissioned by the Netherlands’ Ministry of Foreign Affairs, offers in its first half a meditation on the mesmerizing, often impossible world Escher had created with his art to date. Its second half captures Escher in the last years of his life, still at work in his Laren, North Holland studio. It even shows him printing one of the three titular serpents, threaded through a set of elaborately interlocking circles, of his very last print Snakes. He never actually finished Snakes, whose patterns would have continued on to the effect of infinity, and even says here of his officially complete works that none succeed, “because it’s the dream I tried for that can’t be realized.”

(via Neatorama)

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The strawberries in this photo are blue

My daughter send this photo to me. I put it in Photoshop to check. The "reddest" part I could find using the eyedropper had an RGB value of 153/181/182. So technically there is some red in the image, but here is what 153/181/182 looks like:

Not very red! Read the rest

7 amazing optical illusions

Richard Wiseman, author of 101 Bets You Will Always Win, made a fun video of seven different illusions. Read the rest

"I'll never trust another trapezoid"

The guy in the cap doesn't get it, but the smart bald guy in glasses knows how it works. From the Bell Science Series film, "Gateways to the Mind" (1958).

Watch the full film (complete with nostalgically warbly soundtrack): Read the rest

Bonobo's brilliantly claustrophobic music video imagines life indoors

Oscar Hudson directed this delightful music video for Bonobo's song "No Reason," described as "a film about staying indoors." Read the rest

Optical illusion - can you see all 12 black dots at once?

There are twelve black dots in this image. Why can't you see all twelve at the same time?

I replaced the black dots with red dots, and it is easier to see them all at once. Read the rest

Dizzying designs by Peter Kogler seem to warp space

Peter Kogler projects or applies patterns to the surfaces of rooms that can be quite disorienting for anyone who enters. Most of his work uses warped black and white lines to distort the size and shape of floors, walls, and ceilings.

He also makes a lot of cool creations involving images of mice and ants.

Peter Kogler site (via Colossal) Read the rest

Opitical illusion: paint, or oily legs?

It took me a while to figure out what the deal is with this photo. I thought at first someone coated their thighs in oil. But then I saw it for what it really was. It reminds me of a Necker cube, only for legs. Read the rest

The optical illusion that's momentarily intriguing the internet

wxs.ca/iso/ presents a simple "isometric" field of cubes, Q*Bert-style. Click and drag across it and the cubes will rise and fall in series of waves. They also start to flash wild colors... or do they? Yes, they do! Read the rest

Photos of blue powder look 3D

On Reddit, folks are wondering why these photos of piles of blue powder look like they are 3D. Some don't see the effect, but I do. Read the rest

The two objects are traveling in exactly the same manner

Clifford Pickover says, "Reality shatter. The two objects are traveling in exactly the same manner. Watch when it turns gray."

And this:

[via] Read the rest

Cube illusion

Here's a fun way on the checker shadow illusion. I don't know where the image file for this is. If anyone knows, please let me know in the comments. Read the rest

Impossible rooftop illusions

Kokichi Sugihara makes 3D optical illusions. He is the creator of the ambiguous cylinders optical illusion that won the 2nd Prize of the 12th Best illusion of the Year Contest 2016. Here's his entry for 2015, which also won second prize. Read the rest

Change this train's direction with your mind

You can make the train appear to move toward you or away from you by imagining it.

View post on imgur.com
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Concentric circles, not a spiral

I had to stare at this for a few minutes. Via Neatorama.

The blue elements in the image above appear to be a arranged in a continuous spiral, but in fact they form a series of concentric circles. Your brain will argue so strongly for a spiral that you may need to run your mouse cursor around the circles a few times to convince yourself.
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