Optical illusions come in many forms, from horses and tigers to moving shapes and floating ships. They’re a fascinating demonstration of how our brain perceives images based on elements like ...

This Super Mario optical illusion has left the internet divided, can you tell if he’s going up or down the stairs? The answer ...

which refers to any optical illusion that our brains perceive as moving but, in reality, is still. The human brain, although highly sophisticated, processes information in a very basic way ...

The bar was S-shaped, which allowed the hoop to pass in a figure-of-eight, giving the illusion that it’s moving in a straight line when looked at from the audience. The part most people don’t ...