Optical illusions and different kinds of brain teasers are sweeping the internet. It has become a favorite pastime for many. This particular optical illusion tests your observation skills . From this ...

The Best Illusion of the Year contest offers researchers, and participants, an opportunity to explore the gaps and limits of human perception. By Katrina Miller Take a look at this video of a waiting ...

Optical illusions are going viral these days. One challenge that is grabbing attention online will perfectly test your ability to pay attention to detail. In the optical illusion, the word ‘sand’ ...