With impossible objects like the stairs above, those two pathways in your gray matter fire back and forth more than usual, trying to come to a conclusion. But they can’t, ...

Dr. Andrew Glennerster from the University of Reading, who led the study, explains: "In the impossible staircase illusion, you cannot tell whether the back corner is higher or lower than the front ...

In Schröder’s Stairs, the A wall appears closest to ... This article was originally published with the title “ The Ups and Downs of An Impossible Staircase ” in SA Mind Vol. 32 No. 3 (May ...

Christopher Nolan's film Inception features a classic optical illusion called the Penrose staircase, which folds back upon itself in space. World-renowned puzzlemaker and LEGO constructor Eric ...

NEXT designed The Elastic Perspective, a staircase based on the Möbius strip. “The idea of the impossible stair [is] you’re not able to continue your trip. At first it seems to be a continuou ...