A. V. Guglielmi

Problems of physics of Pc1 geomagnetic pulsations: On the 90th anniversary of discovery of pearls

“Pearl necklaces”, or simply “pearls”, are undoubtedly the true adomment of the rich diversity of ultra-low-frequency electromagnetic waves in Earth’s magnetosphere. They are noted for outstanding beauty of their form and the mystery of their origin. Pearls were first observed by...