![PBS Space Time S2021E21 - How Magnetism Shapes The Universe](https://i3.wp.com/themoviedb.org/t/p/w300/xDpNedwxXpE8Ku4x4QgGj7n38hq.jpg?resize=300,450)
PBS Space Time S2021E21 - How Magnetism Shapes The Universe
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How far can you follow a compass needle? As far as the north magnetic pole where the needle starts spinning wildly? Compass needles align with magnetic field lines; and on the precise spot of magnetic north, those field lines are vertical. So just tilt your compass 90 degrees and you can continue your journey: either down to the molten iron dynamo surrounding Earth's core; or up. But up to where? The answer: to everywhere. And today that's exactly where we're going to go.
Released | Feb 11, 2015 |
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Runtime | min |
Genre | Documentary, Talk |
Actor | Matthew O’Dowd |
Director | N/A |
Production | N/A |