In a metal like copper, however, the outer electrons swim around freely and are shared by all the atoms. That’s why ...

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 ...

A 800-year-old cache of gold jewelry and silver coins was discovered in northern Germany. And where there’s newly unearthed gold, there’s quite likely an amateur metal detectorist who located it.