Modern smartphones are packed with a wide range of sensors, and their magnetometer can successfully identify certain kinds of ...

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 ...

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 ...

We spent weeks testing the best metal detectors on the market. Here are our top six picks. Purchasing one of the best metal ...

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 ...

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.

Metal detecting is a fun pastime, even when all you can find is a little bit of peace and a whole lot of pop tabs. [Huygens Optics] has a VLF-based metal detector that offers much more feedback than ...