Why Earth's Magnetic Field Matters 🌍: Understanding Its Changes and Impact
Discover the importance of Earth's magnetic field, how it shifts over time, and what it means for navigation, technology, and our planet's future.
About this video
Earth's magnetic field is continuously changing. Magnetic north wanders, and every few hundred thousand years the polarity gradually flips, so that a compass would point south instead of north.
This is the second of three videos:
Magnetic field: an introduction: http://www.youtube.com/watch?v=P7nhgX0ppek
Magnetic field: why it matters
Magnetic field: learning more with Swarm http://youtu.be/Wn-BV9Zp8Pk
This is the second of three videos:
Magnetic field: an introduction: http://www.youtube.com/watch?v=P7nhgX0ppek
Magnetic field: why it matters
Magnetic field: learning more with Swarm http://youtu.be/Wn-BV9Zp8Pk
Video Information
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3
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Duration
1:23
Video length
Published
Aug 19, 2015
Release date
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