Recent studies have shown metallic objects have their own magnetic fingerprints based on size, shape and physical composition. Scientists look to leverage these observations to potentially create a ...

Tiny deviations: the new metal detector looks for minute disturbances in Earth’s magnetic field. (Courtesy: iStock/muffinmaker) A compact, low-cost and low-power metal detector that can identify the ...

It’s possible to count how many US banknotes a person is carrying by using a metal detector to scan their magnetic inks. It’s possible to count how many US banknotes a person is carrying by using a ...

The combination of the two types of machinery is intended to block foods, beverages and other products from metal contamination. According to the company, this “double-team” approach prevents ...

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If you think of a metal detector, you’re probably thinking of a fairly simple device with a big coil and a piercing whine coming from a tinny speaker. [mircemk] has built a more modern adaptation.