Stuff You Should Know Short Stuff: Magnetic Pole Switcheroo
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Nov 22, 2023 Ever wondered what happens when Earth's magnetic poles flip? Dive into the fascinating world of magnetic pole reversals and their potential chaos. From historical shifts like the Le Champ Excursion, which affected climate and biodiversity, to the risks for navigation and animal behavior, it's all covered. Plus, explore how a weakened magnetic field could impact technology and even economic trends. Get ready for surprising links between ancient events and modern challenges!
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Earth's Magnetic Field
- Earth's magnetic field is generated by a molten outer core surrounding a solid inner core made of iron and nickel.
- This field protects life from harmful particles and creates auroras.
Wandering Poles
- Earth's geographic poles and magnetic poles are distinct.
- The magnetic poles wander due to the unstable molten core, sometimes even flipping.
Rapid Pole Shifts
- The Earth's magnetic poles can shift rapidly, up to 10 degrees per year, equivalent to the distance between Atlanta and Toronto.
- This wandering is far more significant than scientists previously thought.