Just about every solid, liquid or gas in the world begins with reactions between individual atoms and molecules. David Pogue dives into the transformative world of chemical reactions, from the complex formula that produces cement to the single reaction that's allowed farmers to feed a global population--a reaction that when reversed, unleashes the powerful chemistry of high explosives.

Originally released by PBS, 2021. Streaming video file encoded with permission for digital streaming by Infobase on January 20, 2021.