Meet the man who built Moscow… from paper. Sergei Tarasov recently completed this remarkably detailed modular origami models of Saint Basil’s cathedral using folded bits of paper. The school teacher ...

Many of us could happily fold a paper crane, yet few feel confident solving an equation like x³ – 3 x² – x + 3 = 0, to find a value for x. Both activities, however, share similar skills: precision, ...