Hinton begins with a philosophical case that knowledge depends on how we arrange our perceptions, then sets out a practical system for imagining four-dimensional space. Using sets of coloured cubes and the analogy of beings who live in a plane, he guides readers step by step toward picturing the shape of a higher world.
A cult classic of Victorian mathematical speculation, with an introductory note by Alicia Boole Stott. Download the free EPUB.