T-Rex: The photoelectric effect...
T-Rex: FOR 10 YEAR OLDS!
T-Rex: When a photon hits an atom with energy hν higher than the ionisation energy, it ejects an electron, which is then free to form a current in the material.
Utahraptor: 10 years olds don't want to listen to that!
Utahraptor: Put some dinosaurs in it or something.
T-Rex: But I don't know anything about those.
The author writes:
Inspired by a real life event that happened to me today.