Resistors & Batteries: Crash Course Physics #29

Batteries power much of your daily life, so today we're going to talk about how they work. We're also explaining how terminal voltage results from the natural internal resistance of every real battery.

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Astrophysics and Cosmology: Crash Course Physics #46

Let's talk about astrophysics, cosmology and how our universe works.

Nuclear Physics: Crash Course Physics #45

Let's talk Einstein and Nuclear Physics. What does E=MC2 actually mean? Why is it useful?

Quantum Mechanics - Part 2: Crash Course Physics #44

Why is e=mc2 such a big deal? And what about this grumpy cat in a box and probability?