4 Physics YouTubers explain their favourite picture

4 physicists show and explain their favourite physics-related image. First Parth G talks about scanning tunnelling microscope, tunnelling current and the resulting images. Then Andrew Dotson shows how bubble champers can detect different particles. Next Pretty Much Physics explains what Feynman diagrams are, and how they help with calculations. Lastly @iggsino physics demonstrates Snell's window and how you can see it in a swimming pool.