Some of the most interesting discoveries happened by a sheer luck or accident and so did this crazy optical illusion you are about to witness.
Just check the video bellow and follow a simple instruction, keeping your eyes on the cross.
Pretty crazy stuff right? Discovery was made by a student named Sean Murphy as he was conducting one of his experiments, where put a set of different faces next to one another and aligned them at the eyes. When he then started browsing through different sets, he noticed faces started to become distorted and amazingly deformed. As he then looked at the individual faces again, they seem perfectly normal and not malformed at all.
Here is another video of the same optical illusion that won second place in the Best illusion of the year 2012 contest:
This crazy optical illusion is called Flashed Face Distortion Effect.