Trying to test your eyesight? Well you can with this new mind-boggling optical illusion. It's no secret regular puzzles and brainteasers could teach you how your eyes and brain work together to see.
There is a mathematical side to optical illusions. One professor studies ... round magically appear squarish when viewed in the mirror. “How can an object be both square and circular?” ...
It is suspected the iceberg effect was caused by an optical illusion called Fata Morgana ... the inversion acts like a mirror, so from the ground if you’re looking a long way to the horizon ...