The Stone Age, Bronze Age and Iron Age denote periods in history during which humans began to master these naturally occurring materials. But what if we could fabricate our own new materials with ...

The film "The Colloidal State" explores the concept of colloids, which are materials in a dispersion where small particles of one substance are distributed throughout another. It distinguishes ...

Urine is a highly saturated solution of extremely complicated composition. Its basic organic constituents are urea, uric acid and its salts, formed by the oxidation of purines. In that fluid, ...