A metal detector is a nifty gadget to have in your home. The best metal detectors provide the opportunity for a fun new hobby or help you find that long lost earring along your property line. You ...

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The working principle of this cheap and easy to build metal detector circuit consists in mixing two equal frequencies which causes a low-frequency interference. When one of the oscillators become ...

An amateur gold prospector stumbles upon a rock containing kilos of gold in Victoria thanks to a cheap detector.

An anonymous amateur miner in a field in Victoria, Australia used a metal detector to excavate a rock weighing about 10 pounds (about 4.6 kg). As a result of the appraisal, it was found that the rock ...