Optical illusions have long fascinated scientists, artists, and everyday viewers. These visual puzzles can make stationary ...

How Two Neuroscientists View Optical Illusions The Best Illusion of the Year contest offers researchers, and participants, an opportunity to explore the gaps and limits of human perception.

It's the same as if you were walking up a stationary frame. But Actually, the Stair Climber Is Harder I said that the stair climber and climbing stairs were the same—but they are not.

The result was a moving object that behaved exactly as predicted by theory, making the Terrell-Penrose effect finally visible. This rare blend of science and art gave new life to a century-old idea.

Penrose Roundabout is South Philly’s newest traffic-calming effort Admired for their improved safety and efficiency compared to traffic lights, roundabouts are growing nationwide — including in ...

If you're renovating a two-story structure, you might be tempted to build your own stairs. Jenna and Nick have done it, too. Here's what they learned.

The illusion shows a cat walking on a set of stairs the mind-bending layout will leave you questioning a major detail. While the feline is facing forwards, it is unclear what direction it is ...

Optical illusions are fascinating visual phenomena that trick the brain into perceiving something different from reality.

The optical illusion challenge for today is an actual adrenaline-rusher! There is a concealed second parrot in the tree image, very cunningly placed within the branches.

Mind This optical illusion expands as you stare at it - and now we know why Using a computer model of the retina, researchers have been able to trace the cause of the expanding hole illusion By ...