SciShow
Big Idea: Gunpowder (2013x11)
Fecha de emisión: Ene 24, 2013
Chinese alchemists searching for an elixir of eternal life discovered the world's first chemical explosive. Hank has the full story on gunpowder in this SciShow about a big idea of science.
- Estrenada: Ene 2012
- Episodios: 3614
- Seguidores: 2