This homemade metal detector circuit will help you find objects composed of materials with relatively high magnetic permeability. It is not suitable for buried coins discovery that is not sensitive ...

Have you ever found yourself suddenly in need of finding a small metal object hidden in the woods? No? Well, neither have we. But we can’t say the same thing for [zaphod], who’s family was hoping to ...

Metal detecting has been a popular hobby for decades, and there are a lot of success stories associated with it. Amateur metal detectorists have discovered priceless ancient relics, valuable coins, ...