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 ...

Biometric door locks — or smart locks — allow you to unlock your door with a combination of your fingerprint and a PIN. Smart locks typically cost a few hundred dollars and allow you to authorize ...

Lock picking is defined by locksmiths as "the art of opening a lock without the key". There's many ways to accomplish this, but I'm specifically interested in using a lock pick set. Since locks vary ...