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 ...

For more stubborn rust or scale, mechanical methods may be necessary. Brass wire brushes, scrapers, or even rotary tools with ...

At first, the Norwegian man thought his metal detector reacted to chocolate money buried in the soil. It turned out to be nine pendants, three rings and 10 gold pearls in what was described as the ...