Introduction Aluminium is the second most abundant metal in the Earth’s crust, sitting under our feet almost everywhere. Yet for most of human history nobody had any. In the 1850s it was more expensive than gold, and Napoleon III reportedly reserved…

Introduction Pick up any object near you that is not metal, wood or glass. A pen body, a phone case, a chair, a bottle cap, a keyboard key, a wire insulation sleeve. Almost all of it began as small plastic pellets,…

Introduction In 1839, Charles Goodyear had spent years trying to make natural rubber usable. The problem was frustrating and well known. Rubber turned soft and sticky in summer heat and went hard and brittle in winter cold. Nobody wanted a material…

Introduction Sand melts at around 1700 degrees Celsius. That is a genuinely difficult temperature to reach and hold in an industrial furnace, and for most of history it made glass an expensive luxury. Then someone discovered that adding soda ash to…

Introduction A ceramic cutting tool insert can machine hardened steel at speeds that would destroy a carbide tool. A ceramic tile in a space shuttle heat shield can glow red hot on one face while the other face stays cool enough…

Introduction A modern car contains roughly 30,000 individual parts if you count every fastener, clip and washer. Those parts come from hundreds of different suppliers, spread across multiple countries, and they must all arrive at the right point on an assembly…

Introduction A modern passenger aircraft wing carries several hundred tonnes of load, flexes visibly in turbulence, survives thousands of pressure cycles, and weighs far less than the aluminium wing it replaced. It is not made of one material. It is made…

Introduction Hold the edge of your shirt and look closely. You are looking at thousands of individual fibres, each shorter than your fingernail in the case of cotton, twisted into a continuous yarn, and then interlaced with other yarns in a…

Introduction Take a sheet of ordinary printing paper and tear it slowly. Look at the torn edge under good light and you will see something surprising. It is not a smooth cut like plastic. It is a fuzzy mat of tiny…

Introduction Concrete is the second most consumed substance on Earth after water. Every bridge, dam, tunnel, high rise and highway you have ever used depends on it, and concrete depends entirely on cement. What makes cement remarkable is the chemistry. You…