One of the landmark discoveries of 19 th century physics was the realisation that electricity, magnetism and light are all connected. Experiments had already shown that the movement of electrical ...

The Joint Chiefs of Staff released a new joint publication for joint electromagnetic spectrum operations, which replaces a previous document focused on electronic warfare. (Armando R. Limon/U.S. Army) ...

Electromagnetic spectrum operations (EMSO) have rocketed to prominence across the U.S. military, complete with their own doctrine, billets and centers of excellence. Yet decades before EMSO was ...

A 413th Flight Test Squadron HH-60W Pave Hawk hangs in the anechoic chamber at the Joint Preflight Integration of Munitions and Electronic Systems hangar at Eglin Air Force Base, Fla. The J-PRIMES ...

FOR SOLDIERS at the front, electromagnetic defences are as vital as air: invisible when present, and disastrous when not. In July Ukrainian troops in southern Donbas found this out the hard way.

Although you might not think of them in this way, you are in possession of two extraordinary antennas, perfectly tuned to receive a narrow band of electromagnetic radiation. These antennas are not ...

Electromagnetic wave is a wave consisting of electric and magnetic fields oscillating and traveling on the same direction. Light is an example of an electromagnetic wave and light in general is part ...