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 ...

A viral optical illusion featuring a horse reveals insights into your personality based on perceived movement. Seeing the horse move away suggests a hopeful, future-oriented mindset, while ...

Some visual scientists think this is due to fixation jitter: eye movements that give the illusion that objects near what you’re focusing on are moving. Which of the two circles in the centre is ...

Visual illusions of motion are a major source of interest in the vision research community. Explaining how a still image can produce an illusory perception of motion is important for a more ...

These illusions often trick us into seeing things that are not there, or perceiving objects differently from reality. For example, a still image might appear to move, or two shapes may seem ...

From puzzles like this one to intricate images that seem to move, the appeal of optical illusions is undeniable. People love testing their cognitive abilities, challenging themselves to see things ...