Redox
The reaction where electrons move from a reducing agent to an oxidising agent, behind combustion, corrosion and batteries.
A redox reaction is one in which electrons move from one chemical species (the reducing agent) to another (the oxidising agent). It sits at the heart of combustion, corrosion, batteries and metal extraction.
Appearances in works
Black Powder
Roughly 75% saltpeter, 15% charcoal, 10% sulfur. What each ingredient does, why it deflagrates instead of detonating, and the sulfur mistake in Dr Stone.
Dynamite
Alfred Nobel, in 1867: soaked into diatomaceous earth, nitroglycerin became safe to carry. Why that works, what it changed, and the dynamite in Dr Stone.