Add Yahoo as a preferred source to see more of our stories on Google. 3D optical illusion drawing hack We love a nice optical illusion (if you hadn't noticed), and happily the internet is full of ...

Optical illusions are not merely tricks or viral brain teasers, they reveal the curious disconnect between what we see and what our brain interprets. A flat drawing might come across as ...

A Stereogram is an illusion ofa 3D surface. As per Julio Otuyama, “The visualisation of a stereogram requires an unusual skill: each eye must be targeted to distinct places on the image. This is ...