Sneakers that float in mid-air? Not quite, but Puma's first collaboration ... or the publisher may receive a commission from if you buy a product or service through those links.

This gives the bridges a three-dimensional look and makes them appear as if they’re floating in mid-air. The bridges overlap ... a commission from if you buy a product or service through those ...

Because of the persistence of vision, the human eye sees these layered images as a complete 3D object floating in mid-air. But there’s a problem. The usual diffusers are rigid. Your hand ...