"You never see anyone using a slide rule in a film. Matinee idol scientists always work out algorithms unaided in their brilliant minds, or scrawl them manically in chalk on giant blackboards. By the same token that unfairly condemns people with colour-coded ring binders as the owners of overly tidy minds, slide rules are supposed to belong only to the pedantic foot soldiers of science, the plodders who have to show us their workings out. But slide rules are lovely things: pleasingly solid, elegantly mysterious in their markings, the perfect marriage of form and function." Joe Moran on slide rules and scientists.