This natural phenomenon not only produces a wonderful light show, but also a strange sound , according to Finnish researchers in 2012.
Until now it was believed that the noises linked to the northern lights were nothing more than a legend of Lappish folklore , but a team led by Unto Laine, from the Aalto University Acoustics Laboratory in Helsinki, managed to capture them.
Apparently, the same energetic particles from the solar wind that create the discharge of lights high up in the Earth's atmosphere also give rise to a kind of clapping , perceptible only 70 meters from the ground, which were recorded by several microphones used. on the research.
Laine found that the sounds followed a pattern that corresponded to the geomagnetic disturbances captured by the Finnish Meteorological Institute during the polar aurora.
