Walk-through metal detectors are common security tools. They use low-frequency electromagnetic fields. These fields interact ...

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, ...

So, you've binged a few treasure-hunting shows and now you're wondering if your own old detector in the garage can find you a pirate chest. One of the first questions that may pop up in your head ...

Southfield Public Schools has been in the process of getting metal detectors into its buildings for the past year, and it ...