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 ...

Researchers at the National Institute of Standards and Technology (NIST) have developed a new type of magnetometer–or magnetic-field detector–that rivals the sensitivity of its predecessors but is ...

Physicists, engineers, and technicians at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory are rounding out the year with key developments to a house-sized particle detector that ...

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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.

This article was updated and checked for accuracy in April 2024. It was originally published in 2021. Believe it or not, metal detection is actually possible on Android phones. In fact, the first ...