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Magnetism: Crash Course Physics #32

Season 1 Episode 32 | 8m 55s

Magnets have a north pole and a south pole. Two of the same pole will repel each other, while opposites attract. Only certain materials, especially those that contain iron, can be magnets. And there’s a magnetic field around Earth, which is why you can use a compass to figure out which way is north. In this episode of Crash Course Physics, Shini takes us into the world of magnetism!

Aired: 11/30/16
Extras
Shini introduces the idea of Quantum Mechanics and how it helps us understand light.
Why is e=mc2 such a big deal? And what about this grumpy cat in a box and probability?
Let's talk Einstein and Nuclear Physics. What does E=MC2 actually mean? Why is it useful?
We've all heard of relativity, but what is it? How does it relate to light and motion?
Getting power at home is pretty amazing – and much more complicated than it may seem.
We've talked about how AC circuits change voltage, but let's take a deeper look.
Sunlight, moonlight, torchlight... They all work the same. Let's talk about light!
Light's behavior seems counterintuitive. That is, until you figure out light is a wave.
We've learned about light and how to bend it to our will. But what can we LEARN from it?
Maxwell's Equations tell us a lot about electromagnetic interactions and physics.
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Shini introduces the idea of Quantum Mechanics and how it helps us understand light.
Let's talk about astrophysics, cosmology and how our universe works.
Why is e=mc2 such a big deal? And what about this grumpy cat in a box and probability?
Let's talk Einstein and Nuclear Physics. What does E=MC2 actually mean? Why is it useful?
We've all heard of relativity, but what is it? How does it relate to light and motion?
Megneto helps Shini explain how induction works and why magnetism seems so complicated.
Ampère was playing with wires when he discovered a fundamental law of electromagnetism.
Getting power at home is pretty amazing – and much more complicated than it may seem.
We've talked about how AC circuits change voltage, but let's take a deeper look.
Sunlight, moonlight, torchlight... They all work the same. Let's talk about light!