Chinese scientists have revealed the secrets of a giant antenna system, stretching across an area five times larger than New York city, which has been key to Beijing’s global leadership in the discovery of critical minerals.
The 500 kilowatt transmitter, originally made for submarine communication, is used by geologists in central China to send signals deep into the Earth to map resources hidden miles underground.
As countries around the world hunt for minerals critical to green energy transition, China is betting on advanced electromagnetic exploration to find deposits of cobalt, lithium and other





