Nothing like a good geometrical-optical illusion! The alteration of the black and white lines and corner shapes causes your brain to get confused about the perspective. Here are a few other good cl…

This bookstore in Shanghai will make you feel like you've entered an alternate universe with stairs on the ceiling.

Birds and planes are a bad combination, but it’s not so easy to shoo our avian friends away from airport runways. Thankfully, scientists from France have stumbled upon an ingenious solution to the problem—an optical illusion that appears to scare the crap out of large predatory birds.

There’s a new optical illusion doing the rounds on Twitter, and this time it’s got nothing to do with a piece of clothing. Huzzah!

:-)

A new optical illusion has been discovered, and it’s really quite striking. The strange effect is called the ‘curvature blindness’ illusion, and it’s described in a new paper from psychologist Kohske Takahashi of Chukyo University, Japan.

Officials in the small Icelandic fishing town of Ísafjörður are counting on it with their first 3D crosswalk, intended to reduce drivers’ speeds on the narrow street.

Most of us don’t really understand how mirrors work, which makes for some fun reflective deception. By Susana Martinez-Conde, Stephen L. Macknik.

Just as Snow White taught you, you should never trust a mirror. This piece of sorcery features a mirror that seemingly turns squares into circles, then vice versa. But interestingly, it's not strictly the mirror that is fooling you – it's a combination of the shapes used and your fickle perspective.

Once you see it, you’ll kick yourself. But this deceptively simple optical illusion is frustrating and confusing people across Facebook. All it asks is to spot anything unusual in the photograph of a brick wall. The image was uploaded by Facebook user Arron Bevin along with the caption: “This is one of the best optical illusions Iv [sic] seen… Took me a good 5 minutes.”

Long before the time of Disney and Pixar, artists made images move using a variety of -scopes and -tropes.

Can you believe your eyes?

If you look directly at the "spinning" ball in this illusion by Arthur Shapiro, it appears to fall straight down. But if you look to one side, the ball appears to curve to one side. The ball appears to swerve because our peripheral vision system cannot process all of its features independently. Instead, our brains combine the downward motion of the ball and its leftward spin to create the impression of a curve. Line-of-sight (or foveal) vision, on the other hand, can extract all the information.

The Internet erupted in an energetic debate yesterday about whether an ugly dress was blue and black or white and gold, with celebrities from Anna Kendrick (white) to Taylor Swift (black) weighing in. (For the record, I’m with Taylor – never a bad camp to be in.) It sounds inane, but the dress question was actually tricky: Some declared themselves firmly in the blue and black camp, only to have the dress appear white and gold when they looked back a few hours later.

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