It is finally possible to hear the ‘voice’ of the Earth’s magnetic field: hypnotic and disturbing, ideal as a background for Halloween night, it was obtained by researchers from the Technical University of Denmark by translating the scientific measurements made by the three satellites of the mission into sounds. Swarm of the European Space Agency (ESA). The audio, available online, will also be heard this week in Copenhagen’s Solbjerg Square, where it will be played three times a day thanks to an audio system installed in the pavement.
“We have made each speaker represent a different location on Earth and demonstrate how our magnetic field has changed over the past 100,000 years,” explains Danish university musician Klaus Nielsen. “The roar of the Earth’s magnetic field is accompanied by a representation of a geomagnetic storm produced by a solar flare that occurred on November 3, 2011 and in fact this all sounds pretty scary.”
The intention is obviously not to instill fear in people, but to remember in an original way the existence of the Earth’s magnetic field and its importance for the existence of life on our Planet. This sort of invisible bubble acts as a shield, protecting us from cosmic radiation and charged particles carried by the solar wind. The ESA trio of Swarm satellites, launched in 2013, aims to investigate the origin of the Earth’s magnetic field by accurately measuring the signals that come not only from the Earth’s core, but also from the mantle, crust and oceans. as well as the ionosphere and magnetosphere.
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