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

but Patrick Hughes' mind-boggling 3D art takes the concept to a whole other level. Hughes uses a style he created called "reverspective," painting uncanny optical illusions of a rooms with an ...

creating the illusion of constant motion. There’s more than one way to use a 3D printer to create a zoetrope, and we doubt we would have ever thought of this one that squashes four dimensions ...