Stefan explains how Earth’s magnetic field isn’t fixed… it shifts and evolves over time through what scientists call *secular variation*. He describes how magnetic poles occasionally reverse, trading places in events that happen irregularly… sometimes separated by hundreds of thousands, even millions of years. It’s a reminder that even what feels constant beneath our feet is part of a greater rhythm…one that’s anything but predictable. Catch the full episode: Youtube: https://youtu.be/-lSXWCnWoU
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