Metal detector
Videos
A metal detector is an instrument that detects the nearby presence of metal. Metal detectors are useful for finding metal objects on the surface, underground, and under water. A metal detector typical
An early metal detector, in 1919, used to find un-exploded bombs in France after World War I
This 156-troy-ounce (4.9 kg) gold nugget, known as the Mojave Nugget, was found in 1977 by an individual prospector in the Southern California Desert using a metal detector.
Metal detectors at Berlin Schönefeld Airport
Magnet fishing
Videos
Magnet fishing, also called magnetic fishing, is searching in outdoor waters for ferromagnetic objects available to pull with a strong neodymium magnet.
Metal detector
…Induction loop Magnet fishing Portable Antiquities Scheme…
A bolt cutter collected through magnet fishing in the Scarpe at Lallaing, France
A neodymium magnet used for magnet fishing
Typical magnet fishing equipment, including protective gloves, a bucket for storing catches, antibacterial hand gel, and a neodymium magnet attached to a rope.
Street sign pulled out of the Jizera in Svijany, Czech Republic, with the magnet used to retrieve it still attached to the signpost.