Ever seen a lock with a round key and thought what wizardry it is? That’s a tubular lock, although some folks call it an Ace, ...

3D printers may have failed as a home appliance, but researchers at the Hasso-Plattner-Institut aren’t ready to give up on them just yet. Last year they successfully 3D-printed a working door handle ...

It can be a real hassle to share your house keys with babysitters, cleaners, relatives, and so on. Plus, it's not exactly secure to have a whole bunch of keys floating around. Smart locks are a great ...