Quantum Mechanics - Part 1: Crash Course Physics #43

What is light? That is something that has plagued scientists for centuries. It behaves light a wave... and a particle... what? Is it both? In this episode of Crash Course Physics, Shini introduces the idea of Quantum Mechanics and how it helps us understand light. Also, there's this thing called the ULTRAVIOLET CATASTROPHE!

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Astrophysics and Cosmology: Crash Course Physics #46

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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?