What *is* a photon?
16:02
What Does An Electron ACTUALLY Look Like?
20:34
How big is a visible photon?
26:46
I don't know why light slows down in water
19:54
How do Electron Microscopes Work? 🔬🛠🔬 Taking Pictures of Atoms
15:10
Why Does Light Exist? What is Its Purpose?
22:45
Retroreflectors; they're everywhere, and they cheat physics (sort of)
14:48
The Big Misconception About Electricity
53:20