WE all love a good optical illusion, so this one will send you through the roof.
A video of the brain teaser “Impossible Rooftop” shows what happens when you place a ball on top of a model house’s roof.
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A brain teaser named “Impossible Rooftop” shows what happens when you place a ball on top of a model house’s roofCredit: YouTube
But rather than rolling off, instead the ball defies the rules of gravity and dances around the edges before settling down – still on the roof.
Its creator Kokichi Sugihara, a professor from Meji University in Kawasaki, Japan told lainformacion.com: “The brain interprets the two eaves as having the same shape.”‘Squareness’ is an example of symmetry and in the case of the impossible roof, the symmetry arises by construing the axis is perpendicular to the roof side section.”
Dr Sugihara said he works with computer software that uses two-dimensional line drawings as three-dimensional objects.
He explained: “Sometimes the program turned these objects into real objects, and that’s how I discovered that some impossible objects are not really impossible—they can actually be built as solids in three-dimensional space.”
This isn’t the first 3D optical illusion the mathematician has made to make fans question the laws of physics.
He’s behind the mind-boggling mirror puzzle named “ambiguous cylinders” that turns squares into circles.
In another clip, a set of plastic squares is put in front of a mirror but, rather than reflecting what we see in front, the glass reflects cylinder.
Bizarrely, when the shape is turned around, the images reverse.
To make matters worse, the video then shows more symmetrical shapes being added, creating a whole new illusion.
A set of four squares becomes overlapping cylinders and two interlinked squares becomes two separate cylinders.
The illusion won the professor second place at the annual illusion of the Year contest.
Luckily, you can stop scratching you head as another clever boffin has revealed the secret behind the confusing images is “reverse engineering”.
Devon, from 3D printing company Make Anything, proved that one side of each cylinder is shaped like a square and the other is more circular.
Categories: Optical Illusion
Source: HIS Education