Qu� s�n els pols magn�tics de la Terra? - 07/06/20
La Terra és plana · Corporaci� Catalana de Mitjans Audiovisuals, SA
June 7, 202021m 18s
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Show Notes
Amb en Joan Anton Catal�, aclarim un concepte que sovint crea confusi�: els pols magn�tics. Qu� s�n? Com sabem que existeixen? On es troben?