There is a mathematical side to optical illusions ... can’t square a circle”, which is essentially metaphor for trying to do the impossible. Yet, world-renowned illusion researcher Kokichi ...

Daily, the internet is bombarded with interesting optical illusion photographs that test ... we've indicated its whereabouts in the image with a red circle. If you were able to catch the cat ...

Optical illusions have a unique ability to challenge ... At first glance, the grid appears to be filled with alternating blue and red circles, each containing the numbers "31" or "73." ...