They hold together everything from the most delicate watch to the largest bridge. The world is literally kept from coming apart by screws and bolts, and yet we don’t often give a thought to these ...

As a species, we’ve done a pretty good job at inventing some useful devices. But as clever as we think we are, given sufficient time, natural selection will beat us at our game at almost every turn.

Screws may be commonplace, but that doesn't mean they're simple. A screw is any shaft with a corkscrew groove carved around its surface and, regardless of their design, screws are usually used to ...