This octopus-inspired smart skin can change shape and reveal hidden secrets on command.

The researchers turned to hydrogels, which are water-rich, jelly-like polymers that respond to temperature and chemicals. But ...

Hackers love 3D printers. In fact, they might love them a little too much. We hope know we aren’t be the only ones who couldn’t turn down a good deal on an overseas printer (or two). But when you’re ...