For decades, amateurs and professionals have used metal detectors to discover treasures under the soil, sand and gravel. Magnetism and electricity go hand in hand. In fact, metal detectors use electromagnetic induction to detect metal objects. They work by generating an electromagnetic field. When metal objects come into contact with this field, they generate a current that is picked up by a receiver coil and sent to the detector's control unit.
From finding lost jewelry and coins to locating important abandoned equipment and artifacts, metal detectors have proven their usefulness time and again. Using metal detectors has aided human exploration for over a century. It could also be included among ideas for fun gifts for families.
If you are interested in exploring or discovering valuable objects, think about investing in a metal detector as well as other devices like a drone or a solar generator for remote power.