There are three main types of optical illusion: literal, cognitive, and physiological. Literal illusions are the result of ...

Optical illusions are older than you think. The first optical illusions date back to 20,000 BC and took the form of cave sculptings. Nowadays they are found all over the place – on screens, in books ...

Apple introduced a new app for iPhone and iPad with iPadOS and iOS 26: Preview. The fan-favorite Mac app used primarily to ...