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PBS Space Time - Season 2021 Episode 21 How Magnetism Shapes The Universe

Trailer
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.

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First Air Date: Feb 11, 2015

Last Air date: Dec 19, 2024

Season: 12 Season

Episode: 397 Episode

Runtime: 26 minutes

IMDb: 10.00/10 by 1.00 users

Popularity: 17.263

Language: English