When you turn it on, the detector sends an electrical current into the transmitter coil, creating an electromagnetic field that reaches down into the ground when the coil is held perpendicular to it.

Surface-enhanced Raman spectroscopy (SERS) is revolutionizing biomedical diagnostics and therapeutics, enabling breakthroughs ...

An advanced metal detector coil encompasses the diameter of the sensor head. Passing current through the MD coil creates an electromagnetic field that induces an electrical current in any metal ...

He suspected EMF interference so as a quick first step he decided to throw together an EMF detector using an Arduino. It uses a bank of LEDs as an indicator bar to reflect the EMF picked up by the ...

Paranormal investigators use them based on the theory that spirits may be able to manipulate EMF fields—when your meter’s lights go haywire, you can interpret that as a ghost. REM Pods Like ...

The findings have significant implications for studying space weather and the relationship between the Sun and the Earth's ...

Chorus waves are mysterious, chirping signals produced by spiraling plasma inside our planet's magnetic field. But a new ...

Opening the instruction leaflet it becomes clear that this is intended for use in monitoring electromagnetic fields for the purpose ... than the traditional metal-detector type of wire finder, ...