Tattoos are forever, right? Well, maybe not like we once thought. You can get them removed (though laser tattoo removal is nothing to scoff at), get an ephemeral tattoo that fades in a few years, or ...

Borrowing an idea from nature could lead to technology capable of producing full-colour prints in a fraction of a second, according to South Korean engineers. Many insects and birds owe their bright ...

Nearly everybody I know has at least one tattoo except me. But I am apparently not the only person without ink, because a day does not go by where my inbox does not host at least one press email ...