WHO: Deirdre Jordan and Bob Robinson, the husband-and-wife team behind Chicago-based Troscan Design + Furnishings, which merges a green, artisanal approach with classic modernist style. WHAT: The Basi ...

Logarithms are a convenient way to express large numbers. Before the invention of calculators, the only alternative to slide rules was to use tables of logarithms. Some important formulae, also called ...