Optical illusions are not mere entertaining visuals, but very excellent tools for education to challenge one's brain as he or ...

Optical illusions are a great educational tool that challenges your brain while entertaining you. These mind-bending puzzles ...

It helps of course that he had the sort of Blakeian imagination that saw a graveyard as a honeycomb full of anguished bees or ‘a green wave full of fish’, but the focus of his extravagant inner eye ...