Ashleigh Wilcox and Ellen Jolley chat to the professor and maths communicator about books, the Open University and music
The scientific story behind the cover of Joy Division's treasured debut
Looking back at puzzles about complex numbers, tic-tac-toe, and the Eggnog Mystery
Start your quest to conquer the planet with this introduction to the wonderful world of machine learning
A crossnumber clue takes us plunging headfirst towards projective geometry
Next time you are finished using a paper cup, create your own papercupter!
