screw

When a screw sticks out on metal or isn't perfectly flush with the surface, an angel in heaven loses an eyeball. Or…

If you've ever struggled to keep your drinks in their receptacle at the beach, this concept will have your pretty…

Many kinds of human engineering have biological equivalents - the most famous is probably the ball and socket joint,…

Earlier there was worry that Apple's freaky "pentalobe security screws" would prevent us from opening up our…