Glass is one of those things that's all around us but noone stops to think about, like, how does light just pass through it ...

Glass was one of the first materials humans made from scratch, and it changed everything that followed. In this episode, Professor Lewis Dartnell explains how glass made experiments, thermometers, ...

Humans have been chemically modifying their world for far longer than you might think. Long before they had the slightest idea of what was happening chemically, they were turning clay into bricks, ...