When you picture a metal detector, you probably imagine a device that has a long shaft with something that looks like a small steering wheel attached to the bottom end. The user walks along the beach, ...

First developed for World War II, motion detectors have come a long way from the radar that pilots used way back then.

There's often history just beneath your feet, waiting to be discovered. A long-forgotten button, an antique coin, or even a remnant from one of the wars that shaped our country. Trying to unearth ...