Season 2 · Episode 36
The Apothecary Diaries · S2E36
Aired on March 28, 2025
Science entries in this episode
Black Powder
In The Apothecary Diaries, Maomao states the exact formula for black powder. We explain the role of each ingredient, the reaction, and the rotten-egg smell.
A Dog's Sense of Smell
Maomao deduces that the dog tracked gunpowder. We explain why dogs smell a hundred times better, how they follow a trail, and how it's used today.
Frog Skin
Frog skin is both a respiratory organ and a chemical arsenal. Protective mucus, bufotoxins, batrachotoxin, and chan su in traditional medicine.