China conducts test flight of a giant coil array. Can it detect nuclear submarines?

AI Summary

China conducted a test flight of a giant coil array system called Airborne Transient Electromagnetic (Atem) detection, which uses powerful electromagnetic pulses to detect nuclear submarines underwater. The test took place at an undisclosed location and involves advanced military technology.

At an undisclosed test site, a helicopter takes off, towing a kite-like array of massive coils. The system, called Airborne Transient Electromagnetic (Atem) detection, works by firing a powerful pulse of electricity through a giant transmitter coil. This creates a brief, strong electromagnetic field that penetrates the ground or water. When the pulse is turned off, the magnetic field induces tiny, decaying “eddy currents” in any conductive material it hits. These currents, in turn, create their...